THIOGLYCOLIC ACID

Thioglycolic acid is a sulfur-containing carboxylic acid. It is a conjugate acid of a thioglycolate(1-).

Source: PubChem

US FDA substance register · UNII 7857H94KHM · registered name Thioglycolic acid · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Thioglycolic Acid is the organic acid that conforms generally to the formula:

Restricted

South Korea · United Kingdom

Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · Health Canada Cosmetic Ingredient Hotlist · MFDS (Korea) cosmetic regulatory information · Taiwan FDA cosmetic ingredients · Taiwan FDA cosmetic regulations · UK cosmetics regulations (OPSS)

Argentina · Brazil

• Field of application and/or use : (a) Products for hair straightening or waving: 1. General use 2. Professional use (b) Depilatories (c) Other products for hair care which are removed after application
• Maximum concentration permitted at final product : (a) 1. 8% ready to use pH 7 to 9.5 2. 11% ready to use pH 7 to 9.5 (b) 5% ready to use pH 7 to 12.7 (c) 2% .ready to use pH 7 to 9.5 The indicated percentages are calculated as thioglycolic acid
• Other limitations and requirements : a, b and c) In the USAGE must obligatorily the following information recorded: - Avoid contact with eyes. - In case of contact with eyes, rinse immediately with plenty water and consult a doctor - and c) Wear suitable gloves
• Use conditions and warnings that must appear on the label : a), b) and c) - Contains thioglycolic acid salts - Follow instructions - Keep out of reach of children - Only for professional use (where appropriate)

ASEAN

• Field of application and/or use : (a) Hair waving or straightening products: 1. General use 2. Professional use (b) Depilatories (c) Other hair care products which are removed after application
• Maximum authorised concentration in the finished cosmetic product : (a) 1. 8% ready for use at pH 7 – 9.5 2. 11% ready for use at pH 7- 9.5 (b) 5% ready for use at pH 7-12.7 (c) 2% ready for use at pH 7-9.5 For general use of hair waving or straightening products the maximum concentration for combination of Thioglycolic acid and thiolactic acid must not exceed 8% calculated as Thioglycolic Acid.
• Other limitations and requirements : (a) (b) (c) The directions for use drawn up in the national or official language(s) must obligatorily incorporate the following sentences: • Avoid contact with eyes • In the event of contact with eyes, rinse immediately with plenty of water and seek medical advice. • Wear suitable gloves (a) and (c) only.
• Conditions of use and warning which must be printed on the labels : (a) • Contains thioglycolate • Follow the instructions • Keep out of reach of children. • For professional use only. (b) and (c) • Contains thioglycolate • Follow the instructions • Keep out of reach of children

Canada

• Conditions of Use by product type : (a) Eyelash curling products (b) Hair dyes, waving or straightening products (c) Hair dyes, waving or straightening products for professional use (d) Depilatory products
• Maximum Concentration Permitted : ((a) 11% (as thioglycolic aci(d) with a pH less than or equal to 9.5 (b) 8% (as thioglycolic aci(d) with a pH less than or equal to 9.5 (c) 11% (as thioglycolic aci(d) with a pH less than or equal to 9.5 (d) 5% (as thioglycolic aci(d) with a pH less than or equal to 12.7
• Warnings and Cautionary Statements: (to the effect of) : (a) "For professional use only.", "Avoid direct skin contact, wear suitable gloves.", "Avoid contact with eyes and, in the event of contact with eyes, rinse immediately with plenty of water and seek medical attention." (b)"Avoid direct skin contact, wear suitable gloves.", "Not for use in the area of the eye." (c) "For professional use only." "Avoid direct skin contact, wear suitable gloves.", "Not for use in the area of the eye." d) "Avoid contact with eyes and, in the event of contact with eyes, rinse immediately with plenty of water and seek medical attention."

Taiwan

• (a2)11%

China

• Maximum concentration : (a)

European Union

• Product Type, body parts : (a) Hair products (b) Depilatories (c) Hair rinse-off products (d) Products intended for eyelash waving
• Maximum concentration in ready for use preparation : (a) 1) 8% 2) 11% (b) 5% (c) 2% (d) 11% The abovementioned percentages are calculated as thioglycollic acid
• Other : (a) General use ready for use pH 7 to 9.5 Professional use ready for use pH 7 to 9.5 (b) ready for use pH 7 to 12.7 (c) ready for use pH 7 to 9.5 (d) ready for use pH 7 to 9,5
• Wording of conditions of use and warnings : Condition of use: (a) (b) (c) Avoid contact with eyes In the event of contact with eyes, rinse immediately with plenty of water and seek medical advice (a) (c) (d) Wear suitable gloves Warnings to be printed on the label: (a) (b) (c) Contains thioglycolate Follow the instructions Keep out of reach of children (a) (d) For professional use only: Cotains thiglycolata, folow the instruction.

Korea’s toxic-substance GHS classification: Danger · H311 (category 3) · H330 (category 2) · H301 (category 3) · +1 more

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex III (restricted substances), entry 2a · maximum concentration (a) (i) 8% (ii) 11% (b) 5% (c) 2% (d) 11% The abovementioned percentages are calculated as thioglycollic acid · applies to (a) Hair products (b) Depilatories (c) Hair rinse-off products (d) Products intended for eyelash waving

Source: EU restricted substances (Annex III)

Restriction III/2a · Other restriction: ban substances that deplete the ozone layer · SCCS opinion: Thioglycolic acid and its salts (TGA)

Source: EU CosIng ingredient list

Reviewed by CIR: Final Report on the Safety Assessment of Ammonium and Glyceryl Thioglycolates and Thioglycolic Acid

Source: US Cosmetic Ingredient Review (CIR)

Reviewed by CIR: Final Amended Report on the Safety Assessment of Ammonium Thioglycolate, Butyl Thioglycolate, Calcium Thioglycolate, Ethanolamine Thioglycolate, Ethyl Thioglycolate, Glyceryl Thioglycolate, Isooctyl Thioglycolate, Isopropyl Thioglycolate, Magnesium Thioglycolate, Methyl Thioglycolate, Potassium Thioglycolate, Sodium Thioglycolate, and Thioglycolic Acid

Source: US Cosmetic Ingredient Review (CIR)