Skincare 101
Jade roller science, a 2026 update: what is real, placebo, and just nice
Thermal mass, lymph movement, and the placebo arc. A 2026 update to what we actually know about jade rollers as a cosmetic…
Articles by Elelaf Reviews Desk
Skincare 101
Why some moisturizers feel cold on first touch: the physics of the chill
Specific heat capacity, water content, and the small evaporative trick that makes some creams feel arctic. The physics of the first-touch cream…
Skincare 101
Why some cleansers leave a film: polyquaterniums, fatty acids, and rinse
Polyquaterniums, residual fatty acids, and the second-rinse rule. A texture-by-texture decode of the cleanser film, and when you should actively welcome it.
Skincare 101
Why ‘hypoallergenic’ is not actually a regulated skincare term
The FDA does not define or police hypoallergenic on cosmetic labels. Here is what the term actually requires of a brand, and…
Skincare 101
What ‘dermatologist-tested’ legally means on a skincare bottle
Dermatologist-tested can mean one dermatologist patch-tested ten subjects. Here is what the phrase legally requires, and how brands use the loophole.
Skincare 101
Cosmetic vs OTC drug regulation: where the legal line really sits
A claim about plumping skin is cosmetic. A claim about treating acne makes it an OTC drug. Here is exactly where the…
Skincare 101
Who really tests skincare for irritation before it hits store shelves
Pre-launch irritation testing is outsourced to specific contract labs and dermatologist panels. Here is exactly who reviews a serum before it ships…
Skincare 101
What ‘double-blind placebo’ actually means in cosmetic studies
Few cosmetic studies are truly double-blind placebo controlled. Here is what the term means, why it is hard to apply to skincare,…
Skincare 101
How skincare clinical trials are designed (and why that design matters)
Cosmetic clinical trials follow specific protocols on duration, sample size, and endpoints. Here is how a real skincare study is built before…
Skincare 101
The FTC’s role in beauty marketing: what they police and what they ignore
The FTC, not the FDA, polices most skincare advertising. Here is what triggers enforcement, how influencer rules apply, and which claims get…