LacSal Serum

$16.00 - $40.00

The only dual-action exfoliating serum formulated by the biochemist who discovered copper peptides.

LacSal combines 8.5% lactic acid with 1.5% salicylic acid for an unique blend that improves the look of enlarged pores for clearer, radiant skin*.

LacSal Serum is an oil-free, pH balanced, leave-on hydroxy acid (does not contain any micro exfoliating beads) that gently rejuvenates skin leaving it immediately smoother.

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Since the skin is in layers and damage can exist in layers, LacSal Serum is an excellent method of exfoliation to be used along with copper peptides for improved results.

1. AM: After cleansing the skin, apply a light amount of your favorite copper-peptide product. The application should be so light that it just barely covers the area without leaving it excessively wet or damp.

2. PM: After cleansing the skin, follow up with a light application of LacSal Serum.


This smooth, easily-absorbed serum is part of a mild exfoliation system (8.5% lactic acid and 1.5% salicylic acid at pH 3.6) designed for ALL skin types.

This smooth, easily-absorbed serum is part of a mild exfoliation system (8.5% lactic acid and 1.5% salicylic acid at pH 3.6) designed for ALL skin types.

LacSal is a mild "leave-on" product. Do not wash off. If other products such as copper peptides or moisturizers are used, wait at least 20-30 minutes before applying them on top of LacSal.


LacSal does not contain any exfoliating beads. This product is to be left on. Do not wash off. Use cautiously around the eye area. Avoid upper eyelid.


Reviews (3)

jf 2nd Apr 2020


Skin Biology Lacsal Serum (dissolves dead skin cells around ingrown hairs). After Menopause and for 5-6 years, I have had stiff, ingrown hairs on my upper lip area. Skin Biology Lacsal Serum has completely dissolved my issues, so the hairs are exposed! Previously I have had laser, electrolysis, taken estrogen, progesterone, Metformin, and used numerous other topical treatments. Quite by accident, I found mention on of Lacsal Serum and that it could help dissolve dead skin proteins. Also ordered Skin Biology CP Serum, but it is the Lacsal Serum that started dissolving the tiny whiteheads.

Helen 7th Jan 2015

Oily skin

. You can fry an egg on my face, due to oily, now in 3 weeks I can see a great improvement My skin is less oily, less [breakouts] so far, I am very happy with this product.

Additional Info & Ingredients

Additional Info & Ingredients


Paraben Free. Artificial Color and Dye Free. Non-comedogenic. Best within 36 months after opening. NO Animal Testing.

LacSal Serum:

Water, lactic acid (88%), glycerine, butylene glycol, hydrolyzed soy protein*, sodium salicylate, hydroxyethylcellulose, phenoxyethanol, polysorbate 20, polysorbate 80, aloe barbadensis (aloe vera) powder, allantoin, fragrance (herbal mask), vitamin E TPGS (tocophersolan).

Material Safety Data Sheet: LacSal Serum

*NOTE: Hydrolyzed soy protein used in this product is non-GMO. It is obtained from soybeans and is then broken down by water to form a complex that is not harmful. Hydrolyzed soy protein used in Skin Biology products is not genetically modified.


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