Bakuchiol

Bakuchiol is a plant-derived ingredient extracted from the seeds and leaves of the Psoralea corylifolia (babchi) plant. It has been used in Ayurvedic and Chinese medicine for centuries. In skincare, it is known as a "natural retinol alternative" because it stimulates collagen production and accelerates cell turnover through a different biological pathway — without the irritation associated with retinoids.

• Efficacy: Studies show 0.5% bakuchiol is comparable to 0.5% retinol for reducing fine lines, wrinkles, and pigmentation after 12 weeks. • Tolerance: Significantly less irritation, dryness, and peeling — no "purge" period. • Mechanism: Retinol works via retinoic acid receptors; bakuchiol works via activation of genes related to collagen synthesis and inhibition of MMPs (matrix metalloproteinases) that break down collagen. • Pregnancy: Considered safe during pregnancy (retinol is not). • Stability: Stable in light and air — no special packaging needed.

• Anyone who cannot tolerate retinol (sensitive skin, rosacea, eczema). • Pregnant or nursing women. • Beginners starting anti-ageing who want a gentler introduction. • Those who want to use a "retinol-like" ingredient in the AM (retinol is PM-only). • Anyone who prefers plant-derived, natural ingredients.

• Can be used AM or PM (unlike retinol, it is light-stable). • Apply after water-based serums, before moisturiser. • Pairs well with: niacinamide, peptides, ceramides, hyaluronic acid, vitamin C. • Can be layered with retinol for enhanced results (use bakuchiol in AM, retinol in PM). • Start with once daily, then increase to twice daily if desired. • Results appear gradually over 8–12 weeks — similar timeline to retinoids.

The key study: A 2019 double-blind, randomised clinical trial published in the British Journal of Dermatology (Dhaliwal et al.) is the most cited comparison of bakuchiol and retinol. Results after 12 weeks with 0.5% bakuchiol twice daily vs. 0.5% retinol once daily: • Both groups showed significant improvement in fine lines, pigmentation, elasticity, firmness, and overall photodamage score • No statistically significant difference between groups in efficacy measures • Retinol group: 22% reported skin scaling, 17% reported stinging • Bakuchiol group: significantly lower rates of all adverse effects Mechanism: Bakuchiol activates retinol-like signalling pathways through upregulation of the same genes (CRABPII, RAR-β) that retinoic acid targets, without binding to classic retinoic acid receptors. It also inhibits MMP-1 (collagenase) independently of the retinoid pathway. What bakuchiol does NOT do: • Does not cause the initial 'retinol purge' of accelerated cell turnover • Does not degrade in light — can be used AM or PM • Does not cause classic retinol peeling and redness Limitation: Most research uses 0.5% bakuchiol. Many OTC products contain this amount, but some cheaper products use far lower concentrations — check that bakuchiol appears meaningfully in the ingredient list.

Bakuchiol's flexibility makes it one of the easiest actives to incorporate into any routine. As a retinol substitute (for those who can't tolerate retinol): AM: Cleanser → Vitamin C → Bakuchiol serum → Moisturiser → SPF 50+ PM: Cleanser → Bakuchiol serum → Niacinamide or ceramide moisturiser As a retinol companion (for those using both): AM: Cleanser → Vitamin C → Bakuchiol → Moisturiser → SPF PM: Cleanser → Retinol (2–3x/week) or Bakuchiol (remaining nights) → Moisturiser With other anti-ageing actives: Bakuchiol combines well with peptides (complementary collagen-stimulating pathways), vitamin C (antioxidant + brightening synergy), and niacinamide (barrier support). Unlike retinol, bakuchiol does not need to be separated from vitamin C. Concentration guidance: Look for products with 0.5% bakuchiol — this is the clinically validated concentration. Some formulas use 1% for enhanced results. Products well below 0.5% are unlikely to deliver meaningful anti-ageing benefits.