Mandelic Acid
What is Mandelic Acid?
Mandelic acid is an alpha hydroxy acid (AHA) chemically known as 2-hydroxy-2-phenylacetic acid, derived through hydrolysis of amygdalin from bitter almonds. It belongs to the exfoliant category in cosmetics, appearing in cleansers, toners, serums, and peels. This organic acid works by reducing the pH on the skin's surface, which loosens the bonds holding dead skin cells together in the stratum corneum. Its larger molecular size compared to other AHAs like glycolic acid allows slower penetration, promoting gradual exfoliation. Additionally, it exhibits antimicrobial properties, helping to control bacteria on the skin and in formulations. Commonly used at low concentrations, it suits various skin types seeking renewal without harshness.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Provides gentle exfoliation to remove dull surface cells.
Acts as an antimicrobial agent to limit bacteria growth on skin.
Supports cleansing by aiding in debris and oil removal.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Individuals with oily or acne-prone skin seeking mild exfoliation. | Those with known allergies to almonds or related compounds. |
| Those preferring gentler AHAs for surface renewal. | Individuals with very compromised skin barriers. |
| People aiming for antimicrobial support in daily routines. | People highly sensitive to acids, even mild ones. |
Safety Notes
- Apply broad-spectrum sunscreen daily, as AHAs increase sun sensitivity.
- Patch test new products to check for personal tolerance.
Frequently Asked Questions about Mandelic Acid
What is mandelic acid?
A gentle alpha hydroxy acid from bitter almonds used for exfoliation and antimicrobial action in skincare.
Is mandelic acid comedogenic?
Rated 0, meaning it does not clog pores.
How does it differ from other AHAs?
Larger molecule size leads to slower absorption and typically less irritation.