Comparing Skincare Products Without Relying On 'Best' Claims

The short answer: Compare skincare products on what you can verify: product type, ingredients, directions, warnings, size, price per ounce and how much evidence stands behind each claim. Then note who benefits if you buy. Leave unknowns blank. A blank cell is useful information, and it’s more honest than a star rating built on guesses.

The worksheet below works without testing a single product yourself. This guide names no products and contains no paid links.

Why “best” tells you so little

“Best” is a conclusion without its working shown. Before it means anything, four questions need answers:

Best for whom? Skin type, sensitivities and budget all differ.
Compared with what? A list of five products says nothing about the ones left off.
Measured how? Scent and texture preferences, sales rank, reviews and clinical outcomes are different things.
Who gains? A commission or free sample doesn’t make an opinion false, but you should know about it.

Step 1: Compare like with like

Start with products that do the same job in the same format. Then check the legal category. FDA separates products by intended use, and a moisturizer marketed with sun protection is both a cosmetic and a drug. In the U.S., sunscreens are regulated as drugs and carry Drug Facts labels. A plain moisturizer and an SPF moisturizer aren’t a fair head-to-head, because only one is making a sun-protection claim. For that comparison, see our sun protection section.

Step 2: Fill in the comparison worksheet

Copy this table and use the current package or the brand’s product page. “Cream A” and “Cream B” are fictional, and their details exist only to show the format.

Comparison point	Fictional Cream A	Fictional Cream B
Job and format	Face moisturizer, leave-on	Face moisturizer, leave-on
Cosmetic, drug or both	Cosmetic	Cosmetic
Fragrance entry in ingredient list	None listed	“Fragrance”
Ingredients you must avoid (clinician-identified)	None found	Unknown: ask brand
Stated use and directions	Twice daily	Once daily
Warnings	External use only	Avoid eye area
Net quantity and price	1.7 oz, $18.00	4 oz, $24.00
Price per ounce	$10.59	$6.00
Main claim and evidence level (Step 3)	“Clinically tested”: level 2	“For sensitive skin”: level 1
Commercial relationship disclosed by the source	Paid link	None stated
Still unknown	Test size and outcome	Fragrance ingredients

For price per ounce, divide the price by the net quantity, which FDA requires as an accurate statement on the package. Compare it alongside how much you’d realistically use, since a lower unit price means little on a large size you may not finish.

Reading the ingredient list carefully

List order helps, but only up to a point. Federal rules allow ingredients at 1% or less to be grouped without regard to order, and they don’t require percentages. So two products with the same ingredient in a similar position may not contain similar amounts. If a product is also an over-the-counter drug, active ingredients are declared separately, which makes that part easier to compare.

Step 3: Sort each claim by evidence

This scale is our reading aid and not a scientific grade. Use it to show how much you actually know about a claim.

Level	What you have	How to treat it
0	Reviewer or retailer opinion with no method shown	Preference information only
1	Brand phrase with no details	A reason to ask questions
2	Brand says it tested, but gives no numbers	Ask how many people, how long, and what was measured
3	Results for an ingredient, not this formula	Background only. It doesn’t show how this product performs
4	Published or fully described test of this exact formula	Strongest here, but weigh design quality, comparison group, applicability and sponsorship

Level 4 tells you a test exists. How much weight it deserves depends on four things, which also apply to any ingredient study at level 3:

Design quality: How many people took part, for how long, and what was measured? Note any steps that limit bias, such as random assignment or having assessors who don’t know who used what.
Comparison group: What was the product compared with? Without a comparison, such as another product or a formula without the featured ingredient, a before-and-after change may have another explanation.
Applicability: Do the study’s people, skin concern, body area and directions match your situation? A result from a different group or a different use may not carry over to you.
Sponsorship: Who paid for the study and who ran it? Funding doesn’t make a result wrong, but it’s worth recording beside the other three.

If a study doesn’t report one of these points, write “unknown” for it on your worksheet.

FTC guidance says health-related claims need competent and reliable scientific evidence. A shopper rarely sees that evidence, which is why “unknown” is often the honest entry.

Claims with a known limit

“Hypoallergenic”: FDA says the term means whatever a particular company wants it to mean.
“Fragrance-free” and “for sensitive skin”: FDA says there’s no federal standard or definition.
“Organic”: FDA’s laws don’t define it, though USDA rules can apply to organic claims.
“Cruelty free”: FDA says there are no legal definitions for this term or “not tested on animals.”
“Cosmeceutical”: FDA says the word has no meaning under the law.
“Dermatologist tested,” “clinically tested,” “clean”: ask what was done, by whom, and on what formula.

Step 4: Check the source of the recommendation

Under the FTC’s Endorsement Guides, material connections can include money, a business or family relationship, and free or discounted products. The Guides also say endorsements must reflect honest opinions, and an ad presenting someone as a user must involve a real user. An expert endorsement must rest on actual use of that expertise. FTC staff advise that an affiliate relationship should be disclosed near the links. The FTC has also banned fake reviews and testimonials, along with paying for reviews that express a particular sentiment.

When you read any “best of” page, look for four things: how products were chosen, whether they were used, who paid, and when the page was last checked. Some articles on this site contain affiliate links. For details, see our affiliate disclosure.

Step 5: Make the decision

Remove any product with a known conflict, such as an ingredient a clinician told you to avoid.
Prefer fuller information. Between two similar products, choose the one whose brand answers your questions clearly.
Compare the remaining cost per ounce, taking your likely use into account.
Start small where you can, and try one new product at a time. AAD notes that using several different products can irritate your skin, and it describes a seven- to 10-day test method.
Recheck after a reorder. A reformulated product can contain different ingredients.

If you still can’t separate two products, that’s a fair result. It often means the differences you can verify are small, and price or preference can decide it.

Your next step

Choose two products you’re deciding between and complete the worksheet from their current labels. Write down every unknown as a question for the brand. Then browse our product comparisons and buying guides, or return to the sensitive skin section.

This guide is general information about reading product claims. It isn’t a product endorsement or medical advice.

Comparing Skincare Products Without Relying on ‘Best’ Claims