By Barbara Marengo, Founder, PHILOGENI · Medically-referenced · Updated July 2026
Almost everyone who's tried retinol in their 40s or 50s has some version of the same story: the excitement about finally addressing fine lines, the "purge phase" you were told to push through, and then — for a lot of women — the day the redness didn't settle and the skin around the eyes discolored and dried out in a way it never had at thirty.
That's not a failure of willpower, and it's not you doing it wrong. It's a mismatch between a molecule designed for a barrier your skin no longer has, and the one it has instead.
Quick answer: Retinol works by driving faster cell turnover, which a robust, estrogen-supported barrier can keep up with — but a hormonally thinning barrier often can't, which is why retinol frequently becomes harder to tolerate after 45, even at doses that were comfortable a decade earlier. Bakuchiol is a plant-derived compound that triggers many of the same renewal pathways through a different route, without the same barrier-disrupting side effects — and a published 12-week head-to-head trial found it comparably effective to retinol, with significantly less irritation.
What retinol actually does — and why it works so well on younger skin
Retinol is the alcohol form of vitamin A. Once absorbed, it converts through two enzymatic steps into retinoic acid, which binds nuclear receptors that drive gene expression tied to cell turnover, collagen synthesis, and pigmentation regulation. [1] Decades of clinical evidence support retinol — and its prescription cousin tretinoin — for fine lines, hyperpigmentation, and photoaging. It works particularly well on skin with a robust barrier: skin that can produce lipids quickly enough to repair the small disruptions that come with accelerated turnover. That's usually the skin you had in your thirties.
Why it gets harder to tolerate after 45
Three factors converge in perimenopause and menopause that change this calculation, even for women whose skin handled retinol comfortably for years:
Barrier thinning. As estrogen declines, lipid synthesis slows and the stratum corneum thins. Retinol-driven turnover then happens faster than a compromised barrier can rebuild — the chronic low-grade irritation ("redness that never fully settles") that many menopausal retinol users describe.
A lower tolerance threshold. The same dose doesn't produce the same response on a different barrier. What was a brief tingle at thirty-five becomes real, lingering irritation at fifty-five, because the barrier has less reserve to absorb the provocation.
Increased photosensitivity. Retinoids increase skin's sensitivity to UV, and menopausal skin's own antioxidant defenses have typically already declined — a combination that raises the cost of pushing through, particularly for skin with rosacea or a tendency to flush.
The "purge phase" women are often told to push through does resolve for some skin. For skin in the hormonal transition, it frequently doesn't — it becomes the new baseline, and the resulting inflammation can itself work against the exact renewal retinol was meant to support.
What bakuchiol actually is
Bakuchiol is a purified, plant-derived compound with a long history in Ayurvedic medicine. The material used in well-made formulations is a purified, supercritical-CO2-extracted bakuchiol — a clean, single molecule, not a crude plant extract.
Bakuchiol is not chemically related to retinol. But gene-expression research has shown it upregulates a similar pattern of genes tied to collagen synthesis, cell turnover, and pigmentation — arriving at comparable downstream effects through a different upstream mechanism, one that doesn't trigger the same barrier-disrupting inflammatory cascade retinoids do. [2] It's a different molecule that reaches a similar destination by a path skin tolerates better.
The head-to-head study
The most relevant piece of evidence is a 2019 randomized, double-blind trial published in the British Journal of Dermatology. [3] Forty-four adults with mild-to-moderate facial photodamage applied either 0.5% bakuchiol twice daily or 0.5% retinol once daily, for 12 weeks. Both groups showed statistically significant, comparable improvements in wrinkle surface area and hyperpigmentation. The retinol group reported significantly more scaling and stinging throughout the study. [3]
It's worth being precise about the limits here: this is one moderate-sized trial (n=44), and bakuchiol isn't a retinoid — it shouldn't be marketed as interchangeable with prescription-strength tretinoin. What it does show is efficacy comparable to a well-established 0.5% retinol, with meaningfully better tolerability — which is exactly the trade-off that matters most for reactive, barrier-compromised skin.
Retinol vs. bakuchiol, at a glance
| Retinol | Bakuchiol | |
|---|---|---|
| Mechanism | Binds retinoic acid receptors directly | Upregulates similar genes via a different pathway |
| Evidence base | Decades of clinical research | One published 12-week head-to-head RCT vs. retinol, plus supporting gene-expression studies |
| Typical side effects | Scaling, stinging, redness, photosensitivity | Significantly fewer reported in the head-to-head trial |
| Best suited for | Skin with an intact, tolerant barrier | Reactive, barrier-compromised, or retinol-intolerant skin |
| Dose that matters | Varies by product/prescription | 0.5% — the concentration used in the published trial |
When to choose which
This isn't a moral question — it's a practical one your own skin will answer. If retinol works for you, your barrier tolerates it consistently, and you're happy with your results, there's no strong reason to switch; it remains one of the most thoroughly studied molecules in dermatology.
If retinol now irritates you in ways it didn't before, if you've stopped using it because the irritation became unmanageable, or if your skin has shifted toward rosacea, eczema, or general reactivity, bakuchiol at the studied 0.5% is what the current evidence supports as an alternative.
The dose matters as much as the ingredient
Most bakuchiol skincare on the market uses it at 0.1% or below — present on the label, unlikely to reach the concentration where the published clinical outcomes were actually observed. "The studied dose, not a token sprinkle" is a meaningful distinction worth checking for on any bakuchiol product, regardless of brand.
How PHILOGENI approaches this
The M-Veil Bio-Lipid Concentrate and Resilience Balm are formulated with purified, plant-derived bakuchiol at 0.5% — the exact concentration used in the published trial above, in an oil-phase formula for chemical stability. It's positioned as a plant-based alternative to retinol, gentle enough for sensitive skin, formulated to help visibly reduce the appearance of fine lines and wrinkles.
One real customer's experience, shared with us directly:
"I have tried skincare products with retinol in the past, but have had to be cautious — when applied near sensitive areas of my face, such as near my eyes, it would cause a strange discoloration and drying out of my skin, making me look tired. I have been using PHILOGENI's Resilience Balm and Bio-Lipid Concentrate for three weeks now. While the balm provides many of the same benefits as the retinol product, I found it to be more gentle on my skin and I have not experienced any adverse effects." — Nicky T.
Frequently asked questions
Is bakuchiol just as effective as retinol?
In the one published head-to-head trial (12 weeks, 44 participants), both showed statistically comparable improvements in wrinkle surface area and hyperpigmentation, with the retinol group reporting significantly more scaling and stinging. It's a real, meaningful data point — not the same volume of evidence retinol has accumulated over decades.
Can I use bakuchiol and retinol together?
Some people do, often alternating nights, but this should be approached cautiously and ideally discussed with a dermatologist, particularly if your skin is already reactive.
What concentration of bakuchiol should I look for?
0.5% is the concentration used in the published clinical trial. Many products on the market use far less — check for a disclosed percentage rather than just the ingredient's presence on the list.
Is bakuchiol safe during pregnancy, unlike retinol?
Retinoids are generally avoided during pregnancy; bakuchiol doesn't carry the same established caution, but this is a conversation to have directly with your doctor or dermatologist, not a decision to make from a blog post.
Why do some bakuchiol products still cause irritation?
Formulation matters — bakuchiol is fat-soluble and most stable in oil-phase formulas; a poorly formulated or under-dosed product, or one combined with other actives, can still cause irritation regardless of the bakuchiol itself.
The takeaway
If retinol has stopped agreeing with you, that's a real, well-documented consequence of a changing barrier — not a sign you've aged out of caring for your skin, or that renewal-focused skincare is off the table. Bakuchiol, at the concentration the research actually used, is a genuinely evidenced way to keep pursuing that goal without asking a more fragile barrier to absorb more than it currently can.
This article is intended for educational purposes and is not medical advice. If you have questions about retinoids during pregnancy or a specific skin condition, please consult a dermatologist.
Sources
1. Mukherjee S, Date A, Patravale V, Korting HC, Roeder A, Weindl G. Retinoids in the treatment of skin aging: an overview of clinical efficacy and safety. Clinical Interventions in Aging. 2006;1(4):327-348.
2. Chaudhuri RK, Bojanowski K. Bakuchiol: a retinol-like functional compound revealed by gene expression profiling and clinically proven to have anti-aging effects. International Journal of Cosmetic Science. 2014;36(3):221-230.
3. Dhaliwal S, Rybak I, Ellis SR, et al. Prospective, randomized, double-blind assessment of topical bakuchiol and retinol for facial photoageing. British Journal of Dermatology. 2019;180(2):289-296. Full study
About the author: Barbara "Barbi" Marengo is the founder of PHILOGENI and author of The Resilience Guide. Read more from Barbi →