What is retinol and why is everyone talking about it?

If you're just starting out in the world of active ingredients and wondering what retinol is, here's a good introduction: it's a vitamin A derivative and one of the most potent (and most proven) ingredients in cosmetics. What does it do? It improves skin texture, helps reduce wrinkles, fades blemishes, fights acne... and that's to start.

Retinol works by accelerating cell renewal, which means it helps skin regenerate faster. It also stimulates the production of collagen and elastin, two proteins that are key to keeping skin firm and elastic. Sounds good, doesn't it? The best thing is that its benefits don't take years to appear: with constant and correct use, the first results are noticeable in just a few weeks.

However, it is a very powerful ingredient, so using it well is almost as important as choosing the right product. And that's where Korean cosmetics make it easy: many formulas are designed to be effective but gentle, and that makes them perfect for sensitive skin or those who are just starting out.

What is retinol used for?

Retinol serves to transform skin. It is one of the few ingredients capable of acting on everything from visible signs of aging to pimples. Here are some of its most notable effects:

Helps to reduce fine lines and wrinkles by stimulating collagen.
Improves texture: skin feels smoother, more even and softer.
Helps reduce blemishes and post-acne marks, even the most persistent ones.
Regulates excess sebum and helps prevent the appearance of pimples.
Evens tone and brightens dull skin.

A well-formulated retinol product is like a professional treatment in a bottle. It's not a miracle worker, but it comes close if you're consistent.

Benefits of retinol for the skin

Firms and improves elasticity.
Smoothes fine lines and reduces the depth of wrinkles.
Corrects imperfections and smoothes uneven texture.
Improves the appearance of enlarged pores.
Gives luminosity and a more even tone.

Key recommendation: if it's your first time, start slowly. A low concentration (like 0.1%) applied 2 nights a week is more than enough to start with. Then you can increase the frequency and intensity depending on how your skin tolerates it.

How to use retinol?

This is where many routines fail: it's not just apply and done. Retinol needs care, consistency and common sense.

Always apply at night and on completely dry skin, after cleansing.
If you use a retinol serum, follow with a nourishing moisturiser.
If you use it as a cream, you can apply it directly as a last step.
Avoid combining it at first with other potent actives, such as chemical exfoliants (AHA, BHA) or pure vitamin C.
Essential: use high SPF every morning. Retinol can make skin more sensitive to the sun.

Bonus tip: if your skin is sensitive or you find retinol irritating, try the ‘retinol sandwich’ technique. First apply a thin layer of moisturiser, then retinol, and finish with another layer of moisturiser. This way you reduce irritation without losing efficacy.

When do the effects start to show?

Be patient. Retinol doesn't have an immediate effect, but when it works, it really works well. In about 4-6 weeks, you may start to notice a smoother texture and more even tone. After three months, changes in firmness, elasticity and wrinkles become visible. And over time, it's an ingredient that can really keep your skin looking its best for years to come.

But results come only if you're consistent. It's no good using it for three nights and leaving it forgotten in the drawer. Give it time and you'll see how it's worth it.

Best retinol for mature skin

For mature skin, the ideal is to combine efficacy with softness. Look for formulas containing soothing ingredients such as Centella Asiatica, ceramides or hyaluronic acid, which help maintain hydration and prevent irritation. A pleasant texture, medium concentration and a good moisturising base are key for retinol to work without compromising the skin barrier. And if the formula includes antioxidants, it's even better: it also protects against environmental damage.

The best retinol for face

If you're just starting out, it's best to choose gentle, well-balanced formulas created to introduce retinol without drama. You will increase concentration once your skin is used to it.

Our recommendations:

Blue Elixir Retinol Serum de Meisani: ideal for beginners. Contains 0.1% encapsulated retinol + panthenol and allantoin, which help to soothe and protect.

Retinol & Ginseng Youth Preserving Treatment de Ondo Beauty 36.5: a perfect cream for those looking to treat wrinkles, firmness and dullness in one formula, with red ginseng and ceramides.

Both products combine efficacy with delicacy and are formulated with ingredients designed so that even sensitive skin can benefit from retinol without worry.

Who shouldn't use retinol?

Although it is a safe active ingredient, there are some cases where it is best to avoid it or use it with caution:

If you are pregnant or breastfeeding (consult your dermatologist).
If your skin is highly sensitised or has significant active outbreaks.
If you are using other dermatological treatments that may cause irritation.

And if you have any doubts, you can always test a small area before applying it all over your face.

To recap: retinol is not just another ingredient. It's one of the most potent and effective ingredients you can incorporate into your routine if you're looking to visibly improve texture, wrinkles, blemishes or acne. But like anything powerful, you have to know how to use it. And with the help of more gentle, thoughtful Korean formulas, doing so without worry is entirely possible.