Prospective, randomized, double-blind assessment of topical bakuchiol and retinol for facial photoageing

Br J Dermatol. 2019 Feb;180(2):289-296. doi: 10.1111/bjd.16918. Epub 2018 Sep 21.

Abstract

Background: Bakuchiol is a phytochemical that has demonstrated cutaneous antiageing effects when applied topically. Early studies have suggested that bakuchiol is a functional analogue of topical retinoids, as both compounds have been shown to induce similar gene expression in the skin and lead to improvement of cutaneous photodamage. No in vivo studies have compared the two compounds for efficacy and side-effects.

Objectives: To compare the clinical efficacy and side-effect profiles of bakuchiol and retinol in improving common signs of cutaneous facial ageing.

Methods: This was a randomized, double-blind, 12-week study in which 44 patients were asked to apply either bakuchiol 0·5% cream twice daily or retinol 0·5% cream daily. A facial photograph and analytical system was used to obtain and analyse high-resolution photographs of patients at 0, 4, 8 and 12 weeks. Patients also completed tolerability assessment questions to review side-effects. During study visits, a board-certified dermatologist, blinded to study group assignments, graded pigmentation and redness.

Results: Bakuchiol and retinol both significantly decreased wrinkle surface area and hyperpigmentation, with no statistical difference between the compounds. The retinol users reported more facial skin scaling and stinging.

Conclusions: Our study demonstrates that bakuchiol is comparable with retinol in its ability to improve photoageing and is better tolerated than retinol. Bakuchiol is promising as a more tolerable alternative to retinol.

Publication types

  • Clinical Trial, Phase I
  • Clinical Trial, Phase II
  • Comparative Study
  • Randomized Controlled Trial

MeSH terms

  • Adult
  • Double-Blind Method
  • Face
  • Female
  • Humans
  • Male
  • Middle Aged
  • Pain / chemically induced
  • Pain / epidemiology
  • Pain Measurement
  • Phenols / administration & dosage*
  • Phenols / adverse effects
  • Prospective Studies
  • Skin / drug effects
  • Skin / radiation effects
  • Skin Aging / drug effects*
  • Skin Aging / radiation effects
  • Skin Cream / administration & dosage
  • Skin Cream / adverse effects
  • Skin Pigmentation / drug effects
  • Skin Pigmentation / radiation effects
  • Sunlight / adverse effects*
  • Treatment Outcome
  • Vitamin A / administration & dosage*
  • Vitamin A / adverse effects

Substances

  • Phenols
  • Vitamin A
  • bakuchiol