Definition
Strontium Thioglycolate is the strontium salt of Thioglycolic Acid that conforms to the formula
US FDA substance register · UNII 8H9L5LC23Q · registered name STRONTIUM THIOGLYCOLATE · single chemical substance
Cosmetic roles
Dissolves hair to remove itDEPILATORYReduces other ingredientsREDUCINGCurls or straightens hairHAIR WAVING OR STRAIGHTENING
Safety & regulatory references
- Restricted
- South Korea
Source: MFDS (Korea) cosmetic regulatory information
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."
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.
Source: MFDS (Korea) cosmetic regulatory information
Restriction III/2a
Source: EU CosIng ingredient list
More data — names, identifiers, properties, test records, literature
Names & identifiers
STRONTIUM THIOGLYCOLATEINCI스트론튬티오글라이콜레이트Korean label name (MFDS standard)Acetic acid, mercapto-, strontium saltSynonym
- CAS No.chemical registry number
- 38337-95-0
- EC No.EU chemical inventory number
- 253-888-9
- DTXSIDUS EPA chemical ID
- DTXSID60191701
- DTXCIDUS EPA compound ID
- DTXCID60114192
- Molecular formula
- C2H4O2SSr
- Molecular weight
- 179.73 g/mol
Irritation and sensitisation studies
3 skin studies and 1 eye studies are on record.
Classed as moderate1
The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 4 studies
- SkinSens1
Skin Sensitization · QSAR Predicted - Skin irritation - category 2
Skin Irritation · Screening - Skin sensitisation - category 1
Skin Sensitization · Screening - Eye irritation - category 2A
Eye Irritation · Screening
Source: US EPA CompTox dashboard
Linked databases 9
- Australian Industrial Chemicals Inventory (AICIS)
- EU CosIng ingredient list 2
- MFDS (Korea) cosmetic ingredient register 2
- MFDS (Korea) cosmetic regulatory information 2 3
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata