Bakuchiol 0.5% nightly
The new 12-week split-face trial out of Seoul (n=84) found bakuchiol 0.5% produced a measurable, if modest, improvement in fine lines and pigmentation when applied nightly. It does not match a 0.025% tretinoin in head-to-head endpoints, but it does so with a fraction of the irritation. For people who genuinely cannot tolerate retinoids, it is the most defensible alternative on the shelf.
Bottom line
Real molecule, modest endpoints. Use as a tolerance bridge — not as a like-for-like retinoid.