LACTIC ACID 80% Liquid
(milk acid) is an acidulant and a naturally occurring Alpha Hydroxy Acid (AHA) produced by a fermentation process. (performed by a lactic acid bacteria, converting simple carbohydrates such as glucose, sucrose, or galactose to lactic acid.)Lactic acid
in the cosmetic market is being used as an Acidulant
and also to rejuvenate the skin by encouraging the shedding of old surface skin cells. It can assist with reducing the appearance of fine lines, irregular pigmentation, age spots & decreases enlarged pores. Lactic Acid, when compared to Glycolic or Citric Acid
, shows greatly reduced irritation while offering pronounced efficacy in exfoliating and skin rejuvenating formulations. Therefore lactic acid is a good choice for first-time peel users or for those with sensitive skin. Also lactic acid is often used in creams & lotions at a lower concentration for a more gentle acid-based peel. When used at concentrations of 2% or less, Lactic Acid will assist to perform the following functionalities; pH regulating, antimicrobial, and moisture binding.
When used at concentrations above 2%, Lactic Acid
will perform the same functions as well as offering:
It's important to note that the pH of the final formulation is just as important as the concentration level
- enhanced skin lightening effects
- improved collagen and elastin synthesis.
- accelerated exfoliation and cell renewal.
- removal of the corneocyte or "dead/horny" layer of skin to reveal a fresher, more youthful appearance.
. Products should be formulated within the usage range of 0.1 to max 10% according to CIR Review , with a pH between 4.0 and 4.5. Important: Do not use lactic acid pure and undiluted
; the solution is highly acidic and can lead to skin irritation and skin burns causing your skin to blister and peel days later, and prolonged contact can cause permanent damage. If it comes in contact with your skin while formulating, immediately wash affected area with plenty of soap and water and remove and wash any clothing it may have spilled on.
Please be aware that when you use any Alpha Hydroxy Acid's on the skin, you are exposing new skin, which is much more susceptible to UV damage. Always follow with an adequate sunscreen.
Accoring to TGA all products using AHA should
include the AHA warning, below, and suggestion to include or follow with a sunscreen. You can copy and paste the text into your web browser here is also a link to FDA website and suggest that you read the entire document
, which is highly recommended.
The following statements should be included in the labeling of products containing alpha hydroxy acids:
*This product may make your skin more sensitive to sunlight
*Sun exposure should be limited by using a sunscreen and by wearing protective clothing;
*If you have sensitive skin, test this product on a small area of skin before applying it to a large area;
*Transient stinging or irritation may occur when using this product. If irritation persists, discontinue use; and
*Not recommended for use on children or infants.
Please note, we are no dermatologist nor doctors and are therefore unable to offer advice on formulating lactic acid or AHA peels or other information regarding its use as such. Please ensure that you consult a professional, as using lactic acid as an ingredient in a chemical peel at an inappropriate strength can cause serious damage to the skin!
This information and much more is contained in the FDA document USFDA on Labeling for Topically Applied Cosmetics Containing Alpha Hydroxy Acids as Ingredients. takeover(please consider it required reading).
very soluble in water, freely soluble in ethanol (96%), sparingly soluble in ether
||Lactic Acid, 2-Hydroxypropanoic acid
||1.22 g/cm³ max