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recommends that the labeling of a cosmetic product that contains an
AHA as an ingredient and that is topically applied to the skin or
mucous membrane, such as the lips, bear a statement that conveys the
Sunburn Alert: This product contains an alpha hydroxy acid
(AHA) that may increase your skin's sensitivity to the sun and
particularly the possibility of sunburn. Use a sunscreen, wear
protective clothing, and limit sun exposure while using this product and
for a week afterwards.
Based on industry-sponsored studies, the Cosmetic Ingredient Review
(CIR) Expert Panel — the industry's self-regulatory body for reviewing
the safety of cosmetic ingredients — concluded that products
containing the AHAs glycolic and lactic acid are safe for use by
This is 88% pure Lactic Acid. It must be diluted to appropriate concentrations for skin care application. Concentrations
in products greater than 30% with a pH of 3.0 or less are considered
professional strength and are only to be used by licensed professionals.
Lactic acid is milder than glycolic acid and applicable to those who are too sensitive to use the glycolic acids and helps to diminish fine lines, reduce pore size, smooth out skin texture.
How does it work?
Alpha-hydroxy acids are naturally occurring acids. Lactic acid is
derived from the fermentation of sour milk. This acid helps to dissolve
the "glue" that holds the keratinized skin cells together and increases
cell exfoliation and replacement. Lactic acid is a natural humectant,
which holds water in the upper layers of the skin increasing the skins
acid is a colorless or slightly yellow, syrupy liquid. It is naturally
formed by the fermentation of lactose, or milk sugar. Its name comes
from the Latin word "lac," which means milk. Commercially, lactic acid
can be made synthetically from chemicals or organically as a by-product
of vegetable (usually corn) fermentation. Lactic acid is a
widely used alpha hydroxy acid derived from sour milk that is far from a
new phenomenon. In fact, Cleopatra is said to have bathed in soured
milk to pamper her skin. Alpha hydroxy acids (AHAs) are naturally
derived ingredients used in a variety of skin care products and
cosmetics. Glycolic acid, malic acid, tartaric acid and citric acid are
other popular types of AHAs.
Lactic acid accelerates the sloughing process. As we age, our skin's
ability to shed dead skin cells is diminished, increasing the need for
specialized exfoliating products. Although less powerful than
retinol-the popular Vitamin A molecule used in skin care treatments and
peels-lactic acid has been heralded by many dermatologists and embraced
by the cosmetics industry. Lactic acid has shown to be a superior
exfoliant-peeling away the outer layers of dead skin, and revealing a
healthier glow. This peeling effect causes damaged layers of skin to
shed more rapidly, improving the texture of the skin- making it softer
and smoother while preventing build-up of skin cells in the pores.
Keeping skin at acid pH level, lactic acid works to limit the growth
of bacteria and spur the development of new cells. It works well on
conditions as diverse as acne and wrinkles, as its exfoliant properties
serve to eliminate dead cells regardless of their cause. Lactic acid is
also useful on the body as well as the face, softening tough areas such
as elbows and heels.
Sunscreens and makeup will last longer with the regular use of latic
acid, as it enhances the absorption of cosmetics, moisturizers and other
skincare products. The molecules in lactic acid are larger than in the
equally popular glycolic acid and although it doesn't penetrate into
skin as deeply, its gentle exfoliating action makes it a perfect choice
for regular use or those with extra sensitive skin.
CIR Review of Lactic Acid indicates it is approved for use at 10% or
less, at a final formulation pH no less than 3.5, when formulated to
avoid increasing sun sensitivity or when directions for use include the
daily use of sun protection. Because products formulated with AHAs can
increase sun sensitivity, the FDA requires specific labeling of products
which contain AHAs and do not include sunscreens.
Typical Usage Rate: 1 - 5% Soluble in water, alcohol and glycerin
The effect of this product varies based on the final product
thickness, pH and concentration. The pH, thickness and time since last
exposure of the skin to which it is being applied along with contact
time and frequency.
Naturally Derived from carbohydrate fermentation
Caution: Keep out of the reach of children and pets.
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