Alpha-hydroxy acids (AHAs) have become a staple in many skincare routines, offering a range of benefits from exfoliation to improved skin texture and tone. Two of the most popular AHAs are glycolic acid and lactic acid. While they share similarities, they also have distinct properties that cater to different skin types. Let’s break down the differences to help you determine which one is best for your skin.
Understanding Glycolic Acid
Derived from sugarcane, glycolic acid is the smallest AHA molecule, allowing it to penetrate deeper into the skin. This makes it a powerful exfoliant that can effectively address concerns like acne, hyperpigmentation, and fine lines. However, due to its potent nature, glycolic acid can be irritating for sensitive skin.
Benefits of Glycolic Acid:
- Exfoliates dead skin cells
- Improves skin texture
- Reduces the appearance of acne scars
- Brightens the complexion
- Stimulates collagen production
We recommend
Murad Vita-C Glycolic Brightening Serum
SkinCeuticals Glycolic 10 Renew Overnight
Decleor Green Mandarin Overnight Bi-Phase Peel
Medik8 Balance Moisturiser and Glycolic Acid Activator
Understanding Lactic Acid
Lactic acid, naturally derived from milk, is a larger molecule compared to glycolic acid. This makes it gentler on the skin, making it a suitable option for those with sensitive or dry skin. In addition to exfoliation, lactic acid also has hydrating properties, making it beneficial for those with dehydrated skin.
Benefits of Lactic Acid:
- Exfoliates dead skin cells
- Improves skin texture
- Hydrates the skin
- Reduces the appearance of fine lines
- Helps with uneven skin tone
We recommend
CeraVe Blemish Control Gel Moisturiser
Decleor White Magnolia Rosy Cream
Elemis Peptide4 Overnight Radiance Peel
Which Acid is Right for You?
Choosing between glycolic and lactic acid depends on your skin type and concerns.
- Oily or Acne-Prone Skin: Glycolic acid’s deeper penetration can help unclog pores and reduce breakouts.
- Dry or Sensitive Skin: Lactic acid’s hydrating properties make it a gentler option that can improve skin texture without causing irritation.
- Combination Skin: You may benefit from using both acids, alternating between them or incorporating them into different products.
- Mature Skin: Both glycolic and lactic acid can help improve the appearance of fine lines and wrinkles, but lactic acid’s hydrating properties might be more suitable for dry, mature skin.
Incorporating AHAs into Your Skincare Routine
When starting a new skincare product, it’s essential to introduce it gradually to allow your skin to adjust. Begin by using the product once or twice a week and increase the frequency as your skin tolerates it.
- Patch Test: Before applying any new product to your face, perform a patch test on a small area of skin to check for irritation.
- Sunscreen: AHAs can increase skin sensitivity to the sun, so it’s crucial to wear broad-spectrum sunscreen with an SPF of 30 or higher daily.
- Hydration: Keep your skin well-hydrated by using a moisturiser to balance the exfoliating effects of AHAs.
Remember, everyone’s skin is unique, and what works for one person may not work for another. If you’re unsure which acid is best for you, consider consulting with a dermatologist for personalised advice.
By understanding the differences between glycolic and lactic acid, you can choose the right exfoliator to achieve a healthier, more radiant complexion.