The strongest clinical evidence: a 2019 randomized, double-blind 12-week trial in the British Journal of Dermatology (n=44) found 0.5% bakuchiol and 0.5% retinol produced comparable reductions in wrinkle surface area and hyperpigmentation, with retinol users reporting significantly more facial scaling and stinging
Metabolic disturbances : Excessive lipolysis may theoretically elevate free fatty acids, potentially affecting liver function or lipid profiles, though this has not been studied in this context
Liang Q, Zhong L, Zhang J, Wang Y, Bornstein SR, Triggle CR, Ding H, Lam KS, Xu A
Vitamin C helps reduce melanin production, while citric acid gently exfoliates the skin to reveal a brighter complexion