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Natural vs. synthetic retinol: what are the differences for your skin?
Phytoretinol, bioretinol, synthetic retinol: a clear and scientific guide to choosing the best active ingredient for your skin and your goals.
1. Definition and Origin
1.1 Synthetic Retinol
Synthetic retinol is a chemically produced form of vitamin A. It belongs to the large family of retinoids:
- retinol
- retinaldehyde
- retinyl esters
- retinoic acid
- other pharmaceutical retinoids
These molecules penetrate the skin layers and stimulate:
- collagen production,
- procollagen synthesis,
- skin tissue renewal.
They are found in serums, night creams, cleansers, and sometimes in capsules (under medical supervision).
1.2 Natural Retinol (Bioretinol & Phytoretinol)
Natural retinol refers to molecules of plant origin, often called:
- phytoretinol,
- bioretinol,
- retinol-like,
- retinoid-like.
These alternatives are derived from sources such as:
- acerola,
- rosehip oils,
- organic active ingredients and plant extracts rich in bioactive compounds.
They are not "true" retinoids, but they mimic a similar action on skin regeneration, generally with less irritation.
2. Scientific Efficacy: What the Studies Say
2.1 Synthetic Retinol — Clinical Data
Synthetic retinoids are among the most studied molecules in dermatology.
- +70 to 80% collagen production after ≈ 12 weeks.
- Reduction of wrinkles by 20 to 35% in 3 to 6 months.
- Improvement in skin uniformity in ≈ 70% of patients.
- Direct action on procollagen and the dermis.
✔ Deep reparative action · ✔ Plumping & smoothing effect · ✔ Direct dermal stimulation.
2.2 Bioretinol & Phytoretinol — Comparative Results
Studies on certain phytoretinols (such as bakuchiol) show that:
- They stimulate fibroblasts (collagen producers).
- Improvement in elasticity by 18 to 25% in ≈ 8 weeks.
- Approximately 40 to 60% less irritation than synthetic retinols.
Bioactive plant actives also act as antioxidants, protecting the skin from oxidative stress and environmental aggressors.
3. Long-Term Safety: Natural vs. Synthetic
3.1 Safety of Synthetic Retinol
Synthetic retinols are safe when used correctly, but require some guidance.
Risks of incorrect use
- Temporary thinning of the skin barrier.
- Increased sun sensitivity.
- Increased reactivity in already sensitive skin.
However, long-term studies show that retinol:
- improves skin density,
- strengthens the dermis,
- improves skin's regenerative function.
3.2 Safety of Natural Retinol
Natural retinol (phytoretinol, bioretinol) is generally better tolerated:
- no noticeable skin thinning,
- less irritation on reactive skin,
- compatible with prolonged use.
Its plant-based nature and bioactive compounds make it a milder option, particularly suitable for daily use or for prevention.
4. Comparative Summary Table
| Criterion | Synthetic Retinol | Natural Retinol |
|---|---|---|
| Origin | Chemical / pharmaceutical | Plant-based / natural / organic |
| Action on collagen | Direct and strong | Indirect and progressive |
| Tolerance | Medium | Excellent |
| Risk of irritation | Quite high | Low |
| Long-term safety | Yes, with guidance | Yes, daily use possible |
| Suitable for reactive skin | ❌ | ✅ |
💡 In practice: prefer synthetic retinol for significant correction and natural retinol for a progressive and gentle approach.
5. Practical Usage Precautions
Essential Rules
- ✔ Apply retinol only at night.
- ✔ Use sunscreen every day.
- ✔ Always combine with good hydration.
- ❌ Avoid combining simultaneously with:
- strong exfoliating acids,
- highly concentrated vitamin C,
- aggressive chemical peels.
Recommended Frequency
- Beginner: Twice a week.
- Regular user: 3 to 4 times a week.
- Sensitive skin: Prefer a natural retinoid-like.
6. Advice for Your Skin Type
Sensitive / Reactive Skin
- Prefer phytoretinol or bioretinol of plant origin.
- Avoid formulas with too high a concentration of synthetic retinol.
Mature Skin
- Use synthetic retinol at a low then medium concentration.
- Combine with a regenerating and repairing treatment (ceramides, peptides).
Oily Skin
- A light serum with retinoid helps to smooth skin texture.
- Can help to regulate sebum and refine texture.
Young Skin (Prevention)
- A natural retinol-like + an antioxidant are often sufficient.
- Goal: preserve youth rather than correct.
7. Express FAQ
Is natural retinol as effective as synthetic retinol?
Synthetic retinol remains the benchmark for direct and powerful action on procollagen. Natural retinol is an excellent option for sensitive skin or for prevention.
Can they be combined?
Yes, for example: synthetic retinol in the evening (under supervision), phytoretinol in the morning, always with sun protection.
Is retinol dangerous in the long term?
No, if used correctly (gradual introduction, hydration, daily SPF). Studies even show an improvement in skin density and quality.
8. Conclusion & Call to Action
Synthetic retinol remains the anti-aging benchmark in cosmetics and dermatology for its direct action on collagen and cell renewal. Natural retinol (phytoretinol, bioretinol) offers a milder, plant-based alternative, ideal for reactive skin or prevention.
Ultimately, the right choice depends on:
- your skin type,
- your objective (correction vs. prevention),
- your tolerance to active ingredients.
Discover bakuchiol
Sleeping Beauty combines bakuchiol with a night routine designed to support the appearance of smoother skin.
