Science in a world of tactics.

Too often, the science behind skincare is overshadowed by marketing tactics and myths. At The Ordinary, we believe skincare should be grounded in research, and that transparency matters.

Some of our most-loved formulations also spark the most questions. Using clinically proven data, we bring clarity to the conversation and share exactly how and why they work.

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Niacinamide 10% + Zinc 1%

Niacinamide doesn’t need a makeover to be trending. Clinically tested for use on all skin types since the 1970s, it’s a form of Vitamin B3 your skin depends on to strengthen barrier function, support collagen, and promote a clearer, more even-looking complexion.

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Why we added zinc 1%.

Niacinamide works even better with support. That’s why our scientists combined it with zinc PCA—a combination proven to enhance niacinamide’s delivery into the skin. Together, they help improve hydration and regulate excess oil for clearer-looking skin.

Solution de Peeling AHA 30% + BHA 2%

A softer look won’t change the science. It’s red for a reason. As powerful as a professional treatment, this advanced solution is formulated for confidence—not caution. Its bold red tint comes from black carrot extract and is a built-in reminder to rinse thoroughly and not leave it on for longer than 10 mins.

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How this serum works.

AHAs (alpha hydroxy acids) dissolve dead skin cells for a smoother, more radiant appearance, while BHAs (beta hydroxy acids) penetrate pores to lift away excess oil and debris, helping to prevent blackheads.

Tonique Exfoliant à l'Acide Glycolique 7%

Not to be used everywhere. Just where it works. One of our most-loved formulations, this multi-functional toner can be used beyond the face to hydrate dry scalp skin, smooth arms, legs, elbows and knees, and help prevent ingrown hairs.

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Science in every molecule.

Glycolic acid is popular because it works. With the lowest molecular weight of all AHAs, this small but mighty ingredient penetrates efficiently to exfoliate, smooth texture, and brighten and refine uneven skin tone.

Sérum Apaisant & Protecteur de la Barrière Cutanée

Effective skincare doesn’t need a signature scent. We don’t use fragrance in our formulations to minimise the risk of skin irritation. Around 4% of the general population reacts to fragrance, so leaving it out means more people can use this serum. Instead, our Soothing & Barrier Support Serum is powered by 8 skin-supporting technologies to protect, soothe, and support your skin barrier in one step.

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All-Around Barrier Support.

Sensitive skin is a concern that affects around 40% of the global population. That's why we combined 8 active ingredients to address each step in the skin irritation cycle, helping calm visible redness, support the barrier, and improve skin comfort over time.

Consultez quelques-unes de nos ressources « Retour aux sources » disponibles dans la Bibliothèque The O.

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