AHA / BHA: How Do They Work on Your Skin? 

Acne scars, dull complexion, dark spots, minor imperfections… Just like your body, your skin evolves with time and sometimes shows signs of fatigue. But loss of radiance or persistent marks are not inevitable. Gentle exfoliation with AHA and BHA can visibly transform your skin’s quality — as long as you understand what they are and how to use them. 

AHA (Alpha-Hydroxy Acids) and BHA (Beta-Hydroxy Acids) both belong to the family of exfoliating acids. Far from being artificial newcomers, they exist naturally in plants, fruits and bark. 

AHA are water-soluble acids. They work mainly on the skin’s surface, loosening the bonds between dead cells to encourage their natural shedding. Among the most common are glycolic acid (from sugar cane), citric acid (from lemon and citrus fruits) and lactic acid (from fermentation). 

BHA, with salicylic acid as the most representative, are oil-soluble. Unlike AHA, they penetrate deeper into pores, dissolving excess sebum and impurities. Salicylic acid is found naturally in Willow bark, long used for its soothing and purifying properties. 

Chemical exfoliation with AHA and BHA doesn’t “scratch” the skin mechanically. Instead, it dissolves the bonds that hold dead cells together, allowing them to detach gently. This leaves the complexion brighter and helps the skin absorb subsequent treatments more effectively. 

AHA are ideal for: 

BHA, more suitable for blemish-prone skin, are perfect for: 

Pollution, UV rays, stress, fatigue — many factors slow down skin renewal and cause a build-up of dead cells. The result: a dull, uneven complexion. Gentle exfoliation allows the skin to breathe again. Unlike harsh scrubs with large grains, AHA and BHA act with finesse, making them suitable even for delicate skin. 

When properly balanced with soothing botanicals, they can benefit every skin type: dry, oily, combination, or sensitive. 

At Absolution, we’ve chosen to harness these natural exfoliating actives in formulas that are both effective and respectful of the skin: 

Dull or fatigued skin: AHA restore glow and luminosity. 

Skin with pigmentation or acne scars: they help even out tone. 

Combination to oily skin: BHA regulate sebum and prevent blemishes. 

Sensitive skin: with gentle formulas, even reactive skin can enjoy their benefits. 

As powerful actives, AHA and BHA require mindful use. Their exfoliating action can make the skin more sensitive to the sun, so daily SPF protection is essential, especially when used in the morning. 

At Absolution, our formulas are designed to remain gentle, provided their rhythm of use is respected: 

For very reactive skin, it’s best to start with low concentrations and soothing botanicals. And if you’re undergoing specific dermatological treatments (such as retinoids or strong peels), it’s advisable to consult a professional before introducing them. 

AHA and BHA are precious allies for achieving smooth, radiant and balanced skin — without the harshness of abrasive scrubs. By supporting natural cell turnover, they help soften imperfections, fade signs of time and restore luminosity. 

When integrated into thoughtful, organic formulas such as La Crème Gommante and Le Nettoyant Pureté, they become accessible to every skin type, even the most delicate. Because exfoliating isn’t about aggression — it’s about guiding the skin gently along its natural path of renewal.