What is LHA and why is it so widely used in cosmetics?
LHA (Lipohydroxy Acid) is a derivative of salicylic acid recognized for its exfoliating, purifying and regenerating properties. Derived from dermatological research, it is used in numerous skincare products to combat acne, improve skin texture and stimulate cell renewal.
Thanks to its lipophilic structure, LHA penetrates the skin more slowly than salicylic acid, offering gentle, gradual exfoliation, ideal for sensitive or blemish-prone skin. Its keratolytic effects make it a key active ingredient in anti-imperfection, anti-aging and repair skincare products, promoting a more even complexion and visibly smoother skin.
What are the benefits of LHA for the skin?
LHA is appreciated for its multiple beneficial actions on the skin, particularly for oily skin prone to imperfections or in search of radiance.
1. Gentle exfoliation and cell renewal
Unlike conventional exfoliating acids, LHA acts both on the surface and deep down, enabling gradual, irritation-free exfoliation. It stimulates cell renewal, eliminates dead cells and unclogs pores, contributing to clearer, brighter skin.
2. Anti-blemish and anti-acne action
Thanks to its antibacterial and sebum-regulating properties, LHA helps reduce excess sebum, limit the appearance of pimples and tighten dilated pores. It is often included in targeted skincare products for acne and skin imperfections, notably in dermatological ranges dedicated to combination to oily skin.
3. Reducing pigmentation spots and scars
LHA helps even out skin tone by reducing pigmentation spots, residual acne marks and skin irregularities. Its exfoliating effect promotes progressive skin lightening and improves skin texture, reducing redness and post-inflammatory scars.
4. Anti-aging properties and smoothing of skin texture
By stimulating cell renewal and collagen production, LHA helps smooth fine lines, refine skin texture and improve cutaneous elasticity. Its gentle action makes it an interesting active ingredient for mature skin, seeking to attenuate the first signs of aging without irritation.
5. Soothing and high tolerance for sensitive skin
Unlike more aggressive AHAs and BHAs, LHA respects skin balance while providing effective exfoliation. It is well tolerated by sensitive, reactive or reddening-prone skin, minimizing the risk of dryness or excessive flaking.
How do I use LHA on a daily basis?
LHA is generally incorporated into cosmetic care products, in the form of serums, creams, lotions or cleansing gels. Its application depends on the skin's specific needs and the type of product used.
As an anti-blemish serum or cream
As an exfoliating lotion for a luminous complexion
Purifying cleanser for oily skin
Combination with other active ingredients
With hyaluronic acid: to maintain moisture levels and prevent dryness.
With niacinamide: to soothe redness and strengthen the cutaneous barrier.
With vitamin C: for an anti-spot and radiance-boosting effect.
With sun protection (SPF 30 minimum): essential during the day to prevent hyperpigmentation and protect skin from UV rays.
Does LHA have any side effects or contraindications?
LHA is well tolerated by most skin types, including sensitive skin. However, like all exfoliants, it may cause slight redness or a tingling sensation when first used, especially on skin not used to acids.
Precautions for use
LHA is not recommended for pregnant and breast-feeding women, due to the lack of studies on its safety during pregnancy.
How to choose a quality LHA skin care product?
To take full advantage of LHA's properties, it's essential to choose a quality product, formulated with complementary, skin-friendly active ingredients.
LHA is available in pharmacies, parapharmacies and specialized stores, in the form of serums, lotions, creams or cleansing gels, adapted to different skin needs.