The Evi Edit
Read the evidence, not the ad.
Investigations, ingredient files and claim checks — every story built on research Evi has read and cited.
Evi Investigates
Do red light masks actually work?
The science of light and skin is real. Whether a $189 mask on your nightstand delivers it is a different question.
Evi Editorial · October 2, 2026
Worth the Hype?
Rosemary oil for hair growth: worth the hype?
One study launched a million 90-day videos. Here is what it actually found.
Ingredient Files
Retinaldehyde: the vitamin A that skips a step
Why retinal acts faster than retinol, where bakuchiol fits, and what the 'pore shrinking' promise really means.
Viral Claims
Does peppermint oil grow hair?
The tingle feels like proof. The evidence is a mouse study.