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Lactic Acid 90% USP

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L (+)-Lactic Acid, 90%  USP
CAS: 50-21-5

New and Improved!  We're now offering Lactic Acid 90% -- made to Pharmaceutical Grade standards!  

L (+) Lactic Acid is the natural form of this ingredient often used as a milder alternative to glycolic acid in cosmetic formulations. Alpha hydroxy acids have been shown to promote smoother, younger looking skin by increasing the rate of cell renewal, improving skin texture and tone.

Lactic acid is often used as a natural pH adjuster in formulations.  Produced by the fermentation of carbohydrates, this product does not contain bovine, ovine, or caprine materials of any type.

Please note, we are not estheticians or doctors and we are unable to offer advice on formulating lactic acid peels or other information regarding its use as such.  Please consult a professional, as using lactic acid as a chemical peel or at an inappropriate strength can seriously burn your skin! 

Caution: Do not directly apply Lactic Acid 90% onto your skin. It is strongly acidic. This will BURN!  This product should be added to a formulation at the recommended usage rate.

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. This information and much more is contained in the FDA document USFDA on Labeling for Topically Applied Cosmetics Containing Alpha Hydroxy Acids as Ingredients. The link to this FDA document is also readily accessible in our Reference Room  (please consider it required reading).

Our Lactic Acid 90% is a USP (Pharmaceutical) Grade material, but it becomes Technical/Cosmetic Grade when we repackage it as we are not a pharmaceutical repackaging facility.

Typical Usage Rate: 1 - 5%
Appearance: Colorless syrupy liquid
Odor: Characteristic
Country of Origin: USA
Solubiliby: Soluble in water, alcohol and glycerol

INCI: Lactic Acid


Statements contained herein have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat and cure or prevent disease. Always consult with your professional skin care provider.

Here you will find Material Safety Data Sheets (MSDS) and Technical Data Sheets. The files are in PDF format. To access a file, click on the relevant button or the file name. For your convenience, it will open up in a new browser window.

Please note: You must have Acrobat Reader to view the files listed here. If necessary, the Acrobat Reader link will directed you to a page where it can be downloaded.

Technical Data

Material Safety Data Sheet (MSDS)

Lactic Acid MSDS


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Lotioncrafter's office and warehouse will be closed on Thursday and Friday, November 25th and 26th for the Thanksgiving holiday. During that time email and telephone calls will not be returned (we will respond as quickly as possible next week, after shipping deadlines have been met on Monday afternoon). Our shopping cart will remain active and we will continue to process orders. UPS and Mail shipping will resume on Monday morning, November 29th. DUE TO THE CLOSURE, IF YOU CALL OR WRITE TO ALTER ORDERS ONCE THEY ARE PLACED, DUE TO THE VOLUME OF ORDERS WE WILL BE PROCESSING MONDAY, WE CANNOT GUARANTEE WE WILL SEE YOUR EMAIL OR HEAR YOUR MESSAGE BEFORE SHIPPING. IF WE ARE ABLE TO DO SO, YOUR ORDER WILL BE PULLED FROM THE QUEUE, ADJUSTED AND SHIPPED AFTER OTHER ORDERS WHICH COULD DELAY SHIPPING BY A DAY. Thank you for your understanding.

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