Retinol has become one of the most recommended ingredients in skincare routines — and for good reason. Its ability to renew the skin, reduce expression lines and improve texture makes it a key ingredient in any anti-ageing routine. But to get the most out of it, you need to know what it is, how it works and how to use it correctly.
What is retinol?
Retinol is a derivative of vitamin A used in cosmetics for its regenerative properties. When applied to the skin, it converts to retinoic acid, which stimulates cell renewal, promotes collagen production and helps fade spots and reduce the depth of wrinkles over time.
Main benefits of retinol for the skin
- Cell renewal: accelerates skin turnover, revealing softer, more even skin.
- Anti-ageing action: stimulates collagen production, which helps firm the skin and minimise expression lines.
- Lightening effect: helps fade sun spots and post-acne marks with regular use.
- Improved texture: smooths the skin’s surface and minimises the appearance of enlarged pores.
- Acne control: at certain concentrations, retinol helps regulate sebum production and keep pores clear.
When should you use retinol?
Retinol is always applied at night. During the day, the skin is exposed to UV rays that deactivate retinol and increase sensitivity. Applying it as the last step in your evening routine (before moisturiser) allows it to work while you sleep without interference.
For your night routine, the divain Care Retinol Night Serum combines retinol with soothing ingredients that help minimise the irritation that can occur with initial use, making it suitable for those new to this ingredient.
How to choose retinol by concentration
Concentration is crucial: too low and you won’t see results; too high and you risk irritation. A general guide:
- 0.01–0.03%: ideal for beginners or very sensitive skin. Minimal risk of irritation.
- 0.04–0.1%: for skin already used to retinol. Noticeable results in 4–6 weeks.
- 0.3–1%: advanced concentration. Should be introduced gradually (2–3 times a week) and is not recommended for sensitive skin.
What ingredients combine well with retinol?
Retinol works even better alongside complementary active ingredients:
- Hyaluronic acid: counteracts the dryness that retinol can cause. Apply a hydrating toner such as the divain Care Hyaluronic Toner before retinol to strengthen the skin barrier.
- Peptides: both stimulate collagen by different mechanisms, making them a powerful combination for mature skin. The divain Care Advanced Peptides Night Sorbet can be alternated with retinol for an intensive night routine.
- Niacinamide: reduces redness and reinforces the skin barrier, making retinol better tolerated. Apply it before retinol.
- Avoid combining with: vitamin C (in the same step), AHA/BHA exfoliants (risk of over-exfoliation and irritation).
Frequently asked questions about retinol
At what age can you start using retinol?
Retinol is suitable from the age of 25, when collagen production starts to decrease. For younger skin, it is better to use it therapeutically (for acne) under specialist supervision.
Does retinol thin the skin?
No — quite the opposite. Retinol thickens the dermis over time by stimulating collagen production. Initial peeling or sensitivity is a sign of adjustment, not thinning.
Can retinol be used every day?
In the beginning, it is recommended to use retinol 2–3 times a week to allow the skin to adapt. Over weeks you can increase the frequency if there is no irritation. Some people tolerate it daily after a period of adaptation.
