FoliPrime Review 2026: An Independent, Evidence-Based Look

Last updated: October 2026 · Independent review · No testimonials, no paid placement

Looking for an honest FoliPrime review? Most pages ranking for this product repeat the sales page. This one does not. We checked the label, every named ingredient, the doses, the interactions, the guarantee and the buying risks against independent sources, mainly the U.S. National Institutes of Health, and we tell you plainly where the evidence is thin. We did not personally test the product, and we do not publish invented testimonials.

The short answer

FoliPrime has no published clinical trial of the finished product. Its ingredients range from modestly studied to unsupported for this use. It may help some people a little and others not at all. If you try it, check your medicines first and use the guarantee (a 180-day money-back guarantee) as your safety net.

Key takeaways

• FoliPrime comes as topical hair serum, about 60 ml and is marketed as a product that thicker, fuller hair.
• No published clinical trial has tested the finished product; evidence comes only from individual ingredients.
• Label transparency: we could not verify a complete label.
• Main safety point: People with thyroid disease or on thyroid medicine, because Biotin can affect thyroid levels or thyroid blood tests.
• Guarantee: a 180-day money-back guarantee; buy only from the official website to keep it.
• Evidence-based care for hair loss should come first; treat any product as an optional extra.

Contents

• At a glance
• What it is
• Claims vs. what we verified
• Label Check table
• Ingredients, one by one
• Does it work?
• The research in detail
• Understanding hair loss
• How a professional assesses it
• Practical self-care
• Is it right for you?
• Side effects and interactions
• Complaints
• Is it legit or a scam?
• How to trial it fairly
• Price, guarantee and refunds
• Where to buy safely
• Canada, UK and Australia
• Compared with similar products
• Evidence-based alternatives
• Pros, cons and verdict
• FAQ

FoliPrime at a glance

• Format: topical hair serum, about 60 ml
• How it is used: applied to the scalp daily
• Main claim: thicker, fuller hair
• Label transparency: complete label not verified
• Guarantee: a 180-day money-back guarantee
• Seller: sold through the official website
• Pricing: multi-bottle bundles
• Our evidence rating: Limited; finished product untested

What is FoliPrime?

FoliPrime comes as topical hair serum, about 60 ml, marketed as a product that thicker, fuller hair. The recommended use is applied to the scalp daily. It is sold by sold through the official website. Named ingredients: Argan oil, Biotin, Castor oil, Saw palmetto, Horsetail, Zinc, Babassu oil, Lemon peel extract, Hyaluronic acid.

Like most products in this category, it is sold direct to consumers online, promoted through long sales pages and affiliate reviews, and backed by a money-back guarantee rather than by published clinical trials. That does not make it a scam, but it does mean the burden of proof sits with the claims, and that is what we checked.

How FoliPrime is marketed, and what we could verify

The claim: it thicker, fuller hair.

What we found: The oils can improve how hair looks and feels, but none of the ingredients has good evidence for regrowing hair. Minoxidil is the over-the-counter option with the strongest evidence for pattern hair loss.

Important: Patch-test on a small area first; citrus oils can increase sun sensitivity.

FoliPrime Label Check: label vs. research

This table is our own analysis. For each named ingredient it compares what the label discloses with the amounts typically used in published studies, and grades the evidence for the purpose it is marketed for. It is the quickest way to see whether a formula is likely to deliver research-level doses.

Typical study amounts are approximate ranges from published research summarised by NIH sources; they are not dosing advice.

FoliPrime ingredients, one by one

Research on single ingredients is not proof that a finished product works, but it shows what is plausible and what is not.

Argan oil

What it is: A plant oil used for hair and skin. What the research shows: Can improve how hair feels and looks as a conditioner; no evidence it regrows hair.

Safety: Generally safe.

Biotin

What it is: A B vitamin needed for hair, skin and nail health. What the research shows: Deficiency is rare; supplements may help brittle nails in some people, but evidence for hair growth in people without deficiency is weak.

Safety: The U.S. FDA warns that biotin can interfere with lab tests, including heart and thyroid tests; tell your doctor before blood work.

Castor oil

What it is: A plant oil popular for hair. What the research shows: There is no scientific evidence that castor oil grows hair.

Safety: Can irritate the scalp; rare reports of hair matting.

Saw palmetto

What it is: A palm berry extract, the most widely sold prostate supplement. What the research shows: Two large, well-designed NIH-funded trials found saw palmetto no better than placebo for urinary symptoms of an enlarged prostate, even at higher doses. It does not appear to affect PSA results.

Safety: Generally well tolerated; mild stomach upset or headache; tell your doctor if you take blood thinners or hormone treatments.

Horsetail

What it is: A plant rich in silica. What the research shows: Little evidence for hair growth.

Safety: When taken by mouth it can lower vitamin B1 levels; topical use is low-risk.

Zinc

What it is: An essential mineral for immunity and tissue repair. What the research shows: Helpful when intake is low; no strong evidence for nail, hair, hearing or prostate benefits in people with normal levels.

Safety: Nausea; long-term high doses can cause copper deficiency.

Babassu oil

What it is: A palm-seed oil used as a moisturiser. What the research shows: Works as an emollient; no evidence for hair growth.

Safety: Generally safe.

Lemon peel extract

What it is: A citrus extract mainly used for scent. What the research shows: No evidence for hair growth.

Safety: Citrus oils can increase sun sensitivity on skin.

Hyaluronic acid

What it is: A moisture-binding molecule. What the research shows: Hydrates skin and hair; no evidence it regrows hair.

Safety: Generally safe.

Dose transparency

We could not confirm a complete ingredient label with doses for FoliPrime in independent sources at the time of review. Before buying, ask the seller for the full supplement facts panel and compare it with the ingredient evidence on this page.

Proprietary blends, explained

A proprietary blend lists several ingredients under one total weight, from most to least, without saying how much of each is present. It is legal in the United States, but it prevents buyers from checking doses against research. Very long ingredient lists in a single capsule, dropper or scoop usually mean small amounts of each, because the total weight is limited.

Does FoliPrime work?

There is no published clinical trial of the finished product. Minoxidil and, for men, finasteride have the strongest evidence for pattern hair loss. Oils and serums can improve how hair looks and feels but have little evidence for regrowth.

The evidence in one line per ingredient

• Argan oil: Insufficient evidence.
• Biotin: Useful only if deficient.
• Castor oil: Insufficient evidence.
• Saw palmetto: Negative: not better than placebo in large trials.
• Horsetail: Insufficient evidence.
• Zinc: Useful only if intake is low.
• Babassu oil: Insufficient evidence.
• Lemon peel extract: Insufficient evidence.
• Hyaluronic acid: Insufficient evidence.

What realistic results look like

For products in this category, the honest expectation is no change for many users and a modest change for some. Dramatic results promised in a few days or weeks are not supported by evidence. If symptoms are significant, evidence-based care will usually do far more than any supplement.

The research on hair loss products, in detail

Minoxidil applied to the scalp is approved by the U.S. FDA for pattern hair loss in men and women, and trials show it slows loss and regrows some hair in many users. Finasteride 1 mg is approved for men. Both need months of continuous use, and benefits fade if treatment stops.

Low-dose oral minoxidil is increasingly used by dermatologists, and platelet-rich plasma injections have mixed evidence. These are medical treatments that need supervision.

Biotin is widely marketed for hair, but deficiency is rare, and studies showing benefit were in people with deficiency or specific conditions. The FDA warns that biotin can interfere with laboratory tests.

Iron deficiency, thyroid disease and recent illness or stress are common, treatable causes of hair shedding, so blood tests can be worthwhile.

Hair oils and serums can improve how hair looks and feels, but for genuine regrowth the evidence supports diagnosis and approved treatments.

Understanding hair loss: the bigger picture

The most common type of hair loss is androgenetic (pattern) hair loss in men and women, which is genetic and gradual. Other causes include stress or illness (telogen effluvium), iron deficiency, thyroid disease, alopecia areata and tight hairstyles. A doctor or dermatologist can usually identify the type, which determines what will help.

What helps regardless of supplements

• Assessment by a doctor or dermatologist to identify the cause.
• Blood tests for iron and thyroid when appropriate.
• Evidence-based treatments such as minoxidil.
• Gentle hair care and avoiding tight hairstyles.
• Patience: any treatment needs months to judge.

Warning signs that need a doctor

Sudden patchy hair loss, scalp pain or scarring, or hair loss with other symptoms needs a medical review.

How a professional assesses hair loss

A doctor or dermatologist examines the scalp and pattern of loss, may perform a gentle pull test, and may use a magnifier (trichoscopy). Blood tests for iron, thyroid and other causes are ordered when appropriate. Photographs taken in the same light every few months are the best way to judge whether a treatment is working.

Myths and facts about hair loss

Myth: Oils make hair grow faster.
Fact: Oils can condition hair but have little evidence for regrowth.

Myth: Washing hair often causes hair loss.
Fact: Normal shedding is noticed in the shower; washing does not cause pattern hair loss.

Myth: Biotin works for everyone.
Fact: Biotin helps only in the rare cases of deficiency.

Myth: Results show in a few weeks.
Fact: Hair growth is slow; any treatment needs months to judge.

FoliPrime medication interaction checker

Based on the named ingredients, these medicine groups deserve a check with your doctor or pharmacist before you start FoliPrime:

Questions to ask your doctor or pharmacist about FoliPrime

• Could any of my symptoms have a cause that needs testing first?
• Do any of these ingredients interact with my medicines: Argan oil, Biotin, Castor oil, Saw palmetto, Horsetail, Zinc?
• Is there an evidence-based treatment I should try first or alongside it?
• What warning signs should make me stop and call you?
• How should I measure whether it is helping?
• Is it safe with my other conditions, such as kidney, liver or heart disease?

What we would want to see from the maker

These are the steps that would move FoliPrime from marketing claims towards credible evidence:

• A complete supplement facts panel with the dose of every ingredient.
• A certificate of analysis from an independent laboratory confirming identity, purity and absence of heavy metals.
• At least one published, placebo-controlled trial of the finished product.
• Claims limited to what the evidence supports, without disease-cure language.
• Clear refund terms stating whether the window starts at order or delivery.

Practical self-care for hair loss

Whatever you decide about FoliPrime, these everyday steps, drawn from clinical guidance and rehabilitation practice, make a real difference:

Gentle hair care reduces breakage and makes hair look fuller. Use a mild shampoo, condition the lengths, avoid very hot styling tools, and let hair dry naturally when possible. Avoid tight ponytails, braids and extensions that pull on the hair, which can cause traction hair loss.

A balanced diet with enough protein, iron and other nutrients supports hair growth. Rapid weight loss, crash diets and periods of illness or stress can trigger shedding a few months later, which usually recovers on its own.

Take monthly photos in the same light and position to track changes objectively, because day-to-day impressions are unreliable.

If you start a treatment such as minoxidil, use it consistently for at least six months before judging the result, and expect a temporary increase in shedding at the start in some cases.

See a doctor or dermatologist if hair loss is sudden, patchy, associated with scalp symptoms, or worrying you, so the cause can be identified.

How to check the FoliPrime label when it arrives

Because we could not verify a complete label, the most useful thing we can give you is a method to evaluate it yourself before taking the first dose:

1. Find the Supplement Facts panel and list every ingredient with its amount per serving.
2. Note whether any ingredients are grouped in a proprietary blend without individual amounts.
3. Compare each amount with the typical study amounts in NIH fact sheets; for berberine, for example, studies commonly used about 1,000 to 1,500 mg a day.
4. Check the other ingredients and allergens, including fillers, colourings and sweeteners.
5. Look for a lot number and expiry date, and a manufacturer's address and phone number.
6. Search each ingredient in the NIH Office of Dietary Supplements and NCCIH databases for interactions with your medicines.
7. If anything does not match what you were promised, request a refund within the guarantee window.

A product that cannot show you a complete label is asking for trust it has not earned. That alone is a reasonable reason to choose a more transparent option.

Is FoliPrime right for you?

Skip it or ask a doctor first if any of these apply

• People with thyroid disease or on thyroid medicine, because Biotin can affect thyroid levels or thyroid blood tests.

It may be reasonable to consider if

• You have had a medical assessment and no warning signs are present.
• Your doctor or pharmacist has checked it against your medicines.
• You understand results are not guaranteed and are comfortable using the refund if needed.
• You will keep doing the evidence-based steps above at the same time.

FoliPrime side effects and interactions

We found no published safety study of the finished product, so possible side effects come from its ingredients:

• Argan oil: Generally safe.
• Biotin: The U.S. FDA warns that biotin can interfere with lab tests, including heart and thyroid tests; tell your doctor before blood work.
• Castor oil: Can irritate the scalp; rare reports of hair matting.
• Saw palmetto: Generally well tolerated; mild stomach upset or headache; tell your doctor if you take blood thinners or hormone treatments.
• Horsetail: When taken by mouth it can lower vitamin B1 levels; topical use is low-risk.
• Zinc: Nausea; long-term high doses can cause copper deficiency.
• Babassu oil: Generally safe.
• Lemon peel extract: Citrus oils can increase sun sensitivity on skin.
• Hyaluronic acid: Generally safe.

How to report a side effect

• United States: the FDA's MedWatch program.
• Canada: the Canada Vigilance Program (MedEffect Canada).
• United Kingdom: the MHRA Yellow Card scheme.
• Australia: the Therapeutic Goods Administration.
• Always tell your doctor or pharmacist as well.

FoliPrime complaints

We do not publish customer testimonials, positive or negative, because they cannot be verified. Instead, here is the pattern of complaints that buyers commonly report for direct-to-consumer products in this category:

• Results slower or smaller than the marketing suggests, which is the most common complaint for supplements in every category.
• Higher totals than expected because bundles of 3 or 6 bottles are promoted as the best value.
• Shipping delays and, outside the United States, extra bank currency-conversion fees.
• Difficulty getting refunds when the product was bought from an unauthorised reseller, where the guarantee does not apply.
• Counterfeit or expired product bought on marketplaces.

Most of these can be avoided by buying from the official site, choosing a package that fits the guarantee window, confirming the order is not a subscription, and keeping your order number.

Is FoliPrime legit or a scam?

FoliPrime is a real product sold through an official checkout with a 180-day money-back guarantee. Being a legitimate business is not the same as being proven to work.

• Seller: sold through the official website.
• Label: complete label not verified.
• Finished-product clinical trial: none published that we could find.
• FDA status: dietary supplements are not FDA-approved; claims of FDA approval are a red flag.

Marketing red flags to watch for

• Promises to cure, reverse or permanently fix a medical condition.
• Very short timelines for dramatic results.
• Claims that doctors or the industry are hiding the truth.
• Badges such as clinically proven without published studies.
• Countdown timers and pressure to buy six bottles now.

How to trial FoliPrime fairly

1. Before starting, write down a baseline: how often and how strongly you notice the problem FoliPrime targets, on a 0 to 10 scale, for one week.
2. Check every ingredient against your current medicines with a pharmacist or doctor.
3. Use it exactly as directed (applied to the scalp daily) and change nothing else at the same time, so you can tell what made a difference.
4. Score your symptoms weekly with the same scale.
5. Decide well before the guarantee closes (a 180-day money-back guarantee) whether there is a clear, meaningful change compared with your baseline.
6. Stop immediately and seek advice if you notice side effects or any warning sign listed on this page.

A realistic timeline

• Weeks 1 to 2: watch for side effects; real benefits this early are unlikely.
• Weeks 4 to 6: compare your weekly scores with your baseline.
• Before the guarantee closes: decide honestly whether there is a meaningful change, and request a refund if not.

FoliPrime price, guarantee and refunds

Pricing: multi-bottle bundles. Guarantee: a 180-day money-back guarantee. Confirm the current price, shipping and refund terms on the official website, because offers change.

Choosing a package

• Buy enough to complete a fair trial inside the guarantee window, not more.
• Compare the per-unit price with your total upfront cost.
• Check whether shipping is free on larger packages.
• Make sure bonuses do not hide a recurring subscription.

How to request a refund

1. Find your order number in the confirmation email; ClickBank orders show it on the receipt.
2. Contact the vendor's support or ClickBank customer support and ask for a refund under the guarantee.
3. Return the product if the terms require it, using tracked shipping, and keep the tracking number.
4. Act well before the deadline: check whether the window counts from the order date or the delivery date.
5. If you do not get a response, contact ClickBank support directly with your order number.

Where to buy FoliPrime safely

Buy only from the official website or its authorised checkout. FoliPrime is not sold through pharmacies or chains, and listings on Amazon, Walmart or eBay are third parties that may be counterfeit, expired or stored badly, usually without the guarantee.

How to spot an unofficial seller

• Websites that copy the official page and redirect to an unofficial checkout.
• Prices far below the official price on marketplaces, which often indicates counterfeit or expired product.
• Unexpected recurring charges: confirm that your order is a one-time purchase.
• Fake reviews and invented testimonials on look-alike sites.
• Claims that FoliPrime cures a disease, works for everyone, or replaces your medicine.

How to verify the official checkout

1. Start from a trusted link rather than a search ad.
2. Check that the checkout names the official retailer.
3. Compare the price with the official page.
4. Read the refund terms before paying.
5. Keep the receipt and order number.

Buying FoliPrime in Canada, the UK or Australia

Canada

Health Canada's guidance on personal importation generally allows individuals to bring in health products for personal use, typically up to a 90-day supply, provided the products are not prohibited. Products authorised for sale in Canada carry an eight-digit Natural Product Number (NPN) or DIN-HM on the label; most ClickBank supplements sold from the United States do not have one. You can report a side effect to Health Canada through the Canada Vigilance Program (MedEffect Canada). Before starting, speak with your family doctor, a pharmacist, or your provincial health line (811 in most provinces).

The UK

Food supplements sold in the UK must meet UK food law, and herbal medicines are regulated by the MHRA. Products ordered from the United States are imported goods: depending on the value and the seller's checkout, import VAT, customs duty or a courier handling fee may apply when the parcel arrives, so check your final cost. You can report a suspected side effect to the MHRA through the Yellow Card scheme. Before starting, speak with your GP, a community pharmacist, or NHS 111.

Australia

Under the TGA's personal importation scheme, individuals can generally import up to a three-month supply of an unapproved health product for personal use, provided it does not contain prohibited substances. Products approved for sale in Australia carry an AUST L or AUST R number; most ClickBank supplements shipped from the United States do not. You can report a side effect to the TGA online. Before starting, speak with your GP, a pharmacist, or the healthdirect helpline (1800 022 222).

In all three countries, prices are usually charged in US dollars, so your bank may add a currency-conversion fee, and international delivery takes longer, which matters when the guarantee counts from the order date.

FoliPrime compared with similar products

We have not yet reviewed other products in this category.

How to compare any two products

• Is the full label with doses published?
• Do the doses match those used in research?
• Do any ingredients interact with your medicines?
• How long is the guarantee and who processes refunds?
• Does the marketing promise cures or fast results?

Evidence-based alternatives to FoliPrime

If your goal is to improve hair loss, here is how the main options compare. We place FoliPrime and similar products honestly within the full range of choices:

The practical order is: get assessed, start the options with the strongest evidence, and treat any product, including FoliPrime, as an optional extra that must not delay or replace effective care.

Pros, cons and our verdict

Pros

• A money-back guarantee: a 180-day money-back guarantee.
• Some ingredients have been studied, even though the finished product has not.
• Sold directly by the vendor, so you know where the genuine product comes from.

Cons

• We could not verify a complete label with doses.
• No published clinical trial of the finished product.
• Online-only purchase, usually priced in US dollars.

Our verdict

FoliPrime is a product whose ingredients have, at best, modest or mixed evidence, and whose finished formula has not been tested in a published trial. If you choose to try it, do so with realistic expectations, after checking your medicines, using a written baseline and the guarantee to judge the result honestly.

Check the official FoliPrime website & current pricing

How we reviewed FoliPrime

This review follows our published method. We read the manufacturer's sales page, label and refund terms as described in available sources, and record the date. For each named ingredient we checked independent sources, starting with the NIH Office of Dietary Supplements, NCCIH and the relevant NIH institutes, and graded the evidence for the purpose the product is marketed for. We flagged interactions and groups who should avoid it, compared it with every other product we have reviewed in the same category, and looked at buying risks. We do not accept payment to change a verdict, and we do not publish testimonials. Read how we review supplements.

Glossary

• Androgenetic alopecia: pattern hair loss in men and women.
• Telogen effluvium: temporary shedding after stress or illness.
• Alopecia areata: an autoimmune condition causing patchy hair loss.
• Minoxidil: an approved topical treatment for pattern hair loss.
• Finasteride: a prescription medicine for male pattern hair loss.
• Traction alopecia: hair loss from tight hairstyles.
• Trichoscopy: magnified examination of the scalp and hair.
• Proprietary blend: a group of ingredients listed under one total weight without individual doses.
• Placebo: an inactive look-alike used in trials so that real effects can be separated from expectation.
• Randomised controlled trial (RCT): a study in which people are randomly assigned to the product or a comparison, the strongest test of whether something works.
• Meta-analysis: a study that pools the results of several trials to give a more reliable overall answer.
• FDA-registered facility: a factory that has registered with the U.S. FDA; it does not mean the product is FDA-approved.
• GMP: Good Manufacturing Practice, quality rules for how products are made; they do not prove a product works.
• ClickBank: an established online retailer that processes orders and refunds for many vendors.
• Drug interaction: when a supplement changes how a medicine works, making it weaker, stronger or more toxic.

Frequently Asked Questions

Does FoliPrime really work?

There is no published clinical trial of the finished product; its ingredients have modest or mixed evidence at best.

What are the ingredients in FoliPrime?

Named ingredients: Argan oil, Biotin, Castor oil, Saw palmetto, Horsetail, Zinc, Babassu oil, Lemon peel extract, Hyaluronic acid.

Are the doses disclosed?

We could not confirm a complete ingredient label with doses for FoliPrime in independent sources at the time of review. Before buying, ask the seller for the full supplement facts panel and compare it with the ingredient evidence on this page.

Is FoliPrime safe?

It depends on your health and medicines. People with thyroid disease or on thyroid medicine, because Biotin can affect thyroid levels or thyroid blood tests.

What are the side effects of FoliPrime?

Side effects depend on the ingredients; see the side effects section above for each one.

Can I take FoliPrime with my medicines?

Ask your doctor or pharmacist first; several plant ingredients interact with common medicines.

How long does FoliPrime take to work?

Judge it against a written baseline over the period the maker recommends, and decide before the guarantee closes.

Is FoliPrime a scam?

It is a real product with an official checkout and a guarantee; the concern is that its claims go further than the evidence.

Is FoliPrime FDA approved?

No dietary supplement is FDA-approved. At most, it may be made in an FDA-registered facility, which is different.

Where can I buy FoliPrime?

Only from the official website or its authorised checkout, to get the genuine product and the guarantee.

Is FoliPrime on Amazon or Walmart?

Listings there are third-party sellers and may be counterfeit; they usually do not carry the official guarantee.

Does FoliPrime ship to Canada, the UK and Australia?

Many ClickBank vendors ship internationally; confirm at checkout and check your country's import rules above.

What is the refund policy?

A 180-day money-back guarantee. Contact the vendor or ClickBank support with your order number.

Can FoliPrime replace my treatment?

No. Never stop or reduce prescribed treatment because of a supplement or program.

Who should not use FoliPrime?

People with thyroid disease or on thyroid medicine, because Biotin can affect thyroid levels or thyroid blood tests.

Is there a better alternative?

The evidence-based steps in the alternatives section have stronger support than any product in this category.

Is daily hair shedding normal?

Losing about 50 to 100 hairs a day is normal.

Does biotin stop hair loss?

Only in rare deficiency.

How long before minoxidil works?

Usually several months of continuous use.

Can stress cause hair loss?

Yes, a stressful event can trigger shedding a few months later, which usually recovers.

Do hair oils regrow hair?

Evidence is lacking; they condition hair.

When should I see a doctor?

For sudden, patchy or worrying hair loss.

Affiliate disclosure: this page contains affiliate links; we may earn a commission at no extra cost to you, and this never changes our verdict. Health disclaimer: information only, not medical advice. Statements about supplements have not been evaluated by the FDA; no product is intended to diagnose, treat, cure or prevent any disease. Consult your doctor or pharmacist before using supplements or starting an exercise program.

More FoliPrime research

• Where to buy FoliPrime in Australia
• Where to buy FoliPrime in the UK
• Where to buy FoliPrime in Canada
• FoliPrime complaints & side effects
• Where to buy FoliPrime
• Is FoliPrime legit?
• FoliPrime ingredients

Sources & further reading

• Hair loss (MedlinePlus, NIH)
• How safe is this product or practice? (NIH / NCCIH)
• Dietary supplements (U.S. FDA)
• Dietary supplement fact sheets (NIH Office of Dietary Supplements)

Last reviewed: October 2026. Product details are taken from the manufacturer's promotional materials and published label information available at the time of review; always confirm the current label, price and refund terms on the official website. Read how we review, our editorial policy and affiliate disclosure.