Please enable JavaScript
The eye edit: from brow fortification to under-eye brightening.
Your skin evolves; your routine should, too. Take your diagnostic.
Complimentary gift with every purchase over $100
The eye edit: from brow fortification to under-eye brightening.
Targeted eye treatments. For a rested, strengthened gaze.

Targeted eye treatments. For a rested, strengthened gaze.

Logo

AHA

Alpha-hydroxy acids (AHAs) are naturally derived exfoliating agents renowned for their ability to improve skin texture and radiance. Learn more about these active ingredients, their action on cell renewal, and how they differ from BHAs and PHAs.
Contre-indications, effets secondaires de l'acide mandélique.
Exfoliating active ingredients
4 min of reading
Are there any contraindications to the use of mandelic acid?

Primarily used in professional chemical peels, mandelic acid is now utilized in over-the-counter skincare products, valued for its exfoliating properties. It is particularly used to improve acne, hyperpigmentation, and skin aging. It is considered the gentlest of all AHAs and can thus be safely used by a wide range of skin types. But does it really have no side effects?

Quand utiliser l'acide mandélique ?
Exfoliating active ingredients
4 min of reading
When to use mandelic acid?

Mandelic acid, known by the INCI name "Mandelic acid", is an AHA. It is derived from bitter almonds. This fruit acid can be of natural or synthetic origin. It is valued for its benefits to the skin and hair. If you are considering incorporating a treatment containing this acid into your beauty routine, here is what you need to know.

Soins à base d'acide mandélique.
Exfoliating active ingredients
7 min of reading
Mandelic Acid: What are the treatments based on this fruit acid?

Recently, skincare treatments with mandelic acid are becoming increasingly popular. Gentle yet effective, it delicately exfoliates the skin while also possessing anti-bacterial and anti-inflammatory properties. Let's explore together the various formulas that have incorporated mandelic acid.

Dangers d'une application topique d'acide tartrique.
Exfoliating active ingredients
6 min of reading
Is tartaric acid dangerous for the skin?

Tartaric acid is present in many exfoliating skin care products. Therefore, its use in dermo-cosmetics is common. However, is tartaric acid dangerous for the skin?

Acide tartrique et vieillissement cutané.
Exfoliating active ingredients
4 min of reading
Skin aging: Tartaric acid to diminish the appearance of fine lines.

Tartaric acid belongs to the group of alpha-hydroxy acids. Just like lactic acid or glycolic acid, it is a fruit acid. Let's focus on this active ingredient with multiple benefits against the signs of aging.

FAQ about aha

Which alpha-hydroxy acid (AHA) is the most effective?

The choice depends on your skin type and your concerns. The glycolic acid is often regarded as the most effective at exfoliating and improving skin texture, while the lactic acid offers a gentler exfoliation coupled with hydration.

Can AHAs be used in the morning?

AHAs can render the skin more photosensitive and should therefore be applied preferably in the evening. Sun protection is then indispensable the next day.

Can AHAs reduce wrinkles?

By stimulating cellular renewal, AHAs improve the skin’s appearance and can help diminish the signs of skin aging.

Are alpha-hydroxy acids (AHAs) suitable for sensitive skin?

Most AHAs are too irritating for sensitive skin. However, thanks to its high molecular weight, lactic acid is considered a gentle AHA suitable for use on sensitive skin.

Can AHAs be used daily?

Depending on their concentration, alpha-hydroxy acids (AHAs) can be used daily if the skin tolerates them well. However, it is advisable to begin with intermittent use to minimize irritation and assess skin tolerance.

Do AHAs lighten hyperpigmented spots?

AHAs can help reduce superficial spots by accelerating the removal of pigmented cells, but noticeable results require several weeks of regular use.

At what concentration are AHAs used in cosmetics?

In cosmetic formulations, concentrations typically range from 5% to 10%, depending on the active ingredients and the products. Beyond that threshold, they are usually professional aesthetic treatments performed in beauty spas or dermatology clinics.

Which alpha-hydroxy acids (AHAs) are the most common?

Glycolic acid, lactic acid, mandelic acid, and citric acid are among the most commonly used AHAs.

Are AHAs suitable for dry skin?

It depends on the AHAs. Lactic acid, for example, which also has humectant properties, can be beneficial for exfoliating dry skin.

Can alpha-hydroxy acids be used in combination with retinoids?

Combining AHAs and retinoids is generally not recommended, as this combination can prove too irritating for the skin.

Type24 diagnostic
Understand your skin
and its complex needs.
Begin diagnostic test

Keep the essential.


Our formulas are short, with only essential ingredients.


Made in France

Logo
B Corp Certified