Bakuchiol vs Retinol: The Plant-Based Alternative Backed by Research

In skincare, the biggest fight is the one between “natural” and “actually works.” Bakuchiol has been trying to settle that fight for over a decade — a plant extract clinically positioned as a gentler stand-in for retinol, skincare's most-studied (and most-irritating) anti-aging ingredient. It's one of two Vitamin A Alternatives in our A⁶ Anti-Ageing Formula, paired with CycloRetin™, and unlike most “retinol alternative” ingredients on the market, it actually has the trial data to defend the comparison.

What Is Bakuchiol?

Unlike retinol, bakuchiol is not a Vitamin A derivative, despite producing remarkably similar biological responses in the skin.

Bakuchiol is a plant compound extracted from the seeds of Psoralea corylifolia (babchi), a plant used for centuries in Ayurvedic and Chinese medicine. Despite having no structural resemblance to retinoids whatsoever, gene-expression research has found that bakuchiol switches on a strikingly similar set of genes to retinol — the kind involved in collagen production and skin renewal — without going through the same irritation-prone pathway retinol relies on.

Image 1: Volcanic plot of DNA microarray data– Retinol. (B) Volcanic plot of DNA microarray data– Bakuchiol.

 

 

How Does Bakuchiol Work?

1.     Collagen Signaling: Bakuchiol activates retinoic-acid-receptor pathways similar to retinol, prompting skin cells to ramp up production of Type I and Type III collagen — the proteins responsible for firmness.

2.     Cell Turnover: It encourages skin cell renewal at a rate comparable to retinol, helping fade the look of fine lines and uneven tone over time.

3.     Gentler Delivery: Because its chemical structure is unrelated to retinoids, it sidesteps the irritation pathway behind classic “retinisation” — the redness, flaking and stinging that scare a lot of people off retinol in the first place.

 

The Lab Data: Gene Expression & Collagen Production

In 2014, Chaudhuri and Bojanowski ran bakuchiol through gene-expression profiling on a full-thickness skin model — mapping which genes it switches on and off — then compared the result to retinol's known gene-expression profile. The volcano plots told the story: despite zero structural similarity, bakuchiol's gene-expression pattern overlapped heavily with retinol's, hitting many of the same collagen- and renewal-related genes.

They also ran an ELISA assay measuring collagen stimulation directly in human dermal fibroblasts, expressed as a percentage of an untreated water control:

Test Material (10 μg/mL)	Collagen I	Collagen III	Collagen IV
Bakuchiol	147%	150%	119%
Retinol	119%	148%	100%

 

What does this mean?: bakuchiol out-produced retinol on Collagen I and Collagen IV, and matched it on Collagen III — in vitro, in the same assay, side by side.

What does this mean for your skin?

Collagen is one of the proteins responsible for maintaining skin firmness and elasticity. Higher collagen production may contribute to smoother-looking skin and a reduction in the appearance of fine lines over time.

The 12-Week Clinical Results

The same paper followed up with a 12-week clinical study. Wrinkle depth and skin roughness improved significantly as early as 8 weeks, with even greater reduction by 12 weeks — changes that held up statistically at reduction levels of 2%, 10% and 21% (P ≤ 0.004). Participants also saw measurable improvements in elasticity, firmness, and overall signs of photodamage, including more even skin tone.

Image 2: before/after facial photography at 12 weeks, alongside the wrinkle-depth trend line from baseline through 12 weeks

 

The Head-to-Head Trial vs. Retinol

In 2019, a separate prospective, randomized, double-blind study published in the British Journal of Dermatology put bakuchiol head-to-head against retinol directly.

The setup: 44 participants. Bakuchiol 0.5% cream, twice daily, vs. retinol 0.5% cream, once daily. 12 weeks, with high-resolution facial photography at 0, 4, 8 and 12 weeks, graded blind by a board-certified dermatologist.

•       Wrinkle surface area: significantly reduced in both groups — no statistically significant difference between bakuchiol and retinol

•       Hyperpigmentation: significantly improved in both groups — again, no significant difference between the two

•       Tolerability: the retinol group reported significantly more facial scaling and stinging than the bakuchiol group

image 3: bar chart — wrinkle/hyperpigmentation improvement, bakuchiol vs. retinol, plus a smaller irritation-reported comparison

Put together: bakuchiol matches or beats retinol on collagen production in the lab, delivers significant, compounding improvements on its own over 12 weeks, and matched retinol's results head-to-head — with less scaling and stinging. That's a “natural alternative” claim that survived three separate looks, not just one.

Key Takeaways?

•  Stronger collagen response in vitro: out-produced retinol on Collagen I (147% vs. 119%) and Collagen IV (119% vs. 100%) in the same ELISA assay

•  Comparable efficacy in humans: matched retinol on wrinkle reduction and hyperpigmentation in a head-to-head randomized controlled trial

•   Better tolerability: significantly less scaling and stinging than retinol in the same study

•   Sensitivity-friendly profile: unlike retinoids, bakuchiol isn't a vitamin A derivative — part of why it's so often reached for by people who can't or don't want to use retinol

•   Backed by independent, peer-reviewed research — not just supplier marketing

Why We Chose Bakuchiol

In our A⁶ Anti-Ageing Formula, bakuchiol is one half of our Vitamin A Alternatives duo (alongside CycloRetin™), working alongside Amplified Argireline® and our peptide complex to cover both the renewal side and the expression-line side of ageing — without leaning on a single irritating ingredient to do it.

Conclusion

Bakuchiol isn't “basically retinol” — it's a structurally different ingredient that happens to land in a similar place, with a real trial to prove it. That's the kind of “natural alternative” claim we can get behind: not because it sounds nice, but because it held up under a microscope.

No retinol required, just results.

Research Index

1. Chaudhuri & Bojanowski, 2014 — “Bakuchiol: a retinol-like functional compound revealed by gene expression profiling and clinically proven to have anti-aging effects.” International Journal of Cosmetic Science, 36, 221–230. Source of the gene-expression volcano plots, the ELISA collagen-stimulation table, and the 12-week clinical wrinkle/elasticity/firmness results. https://pubmed.ncbi.nlm.nih.gov/24471735/

2. Dhaliwal et al., 2019 — “Prospective, randomized, double-blind assessment of topical bakuchiol and retinol for facial photoageing.” British Journal of Dermatology, 180(2), 289–296. (Already cited in the comparison post.) https://pubmed.ncbi.nlm.nih.gov/29947134/

3. 28N Skincare — A⁶ Anti-Ageing Formula — Live product page confirming Bakuchiol and CycloRetin as the “Vitamin A Alternatives” pairing. (Already cited in the comparison post.) https://www.28nskincare.com.au/products/anti-aging-serum