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Dihydroxyacetone ( DHA )

ExtratanTM
-The most popular self tanning agent
INCI NameDihydroxyacetone
Synonyms1,3-didhydroxyacetone; DHA
Chemical Name1,3-Dihydroxy-2-propanone
CAS No.96-26-4
EINECS202-494-5
Molecular FormulaC3H6O3
Molecular Weight90.08
Chemical ClassCarbohydrate ( 3- carbon ketose)
Melting Point75-80°C
Boiling Point188°C ( decompositions )
Density1.52g/cm3(20°C)
Water Solubility>250g/L(20°C)
HS Code2914400090
Structure

 

 

MAIN FUNCTONS*

The best self tanning agent for gaining a natural tan-like appearance without

sun exposure

*

Significant and proved photoprotection to UVA due to the cutaneous

pigmentation induced by DHA

*

Incorporation in skin care formulations for daily use to prepare or to prolong

the suntan.

SPECIFICATION
Appearance:White to off-white powder
  Odour:Weak, characteristic
  pH (5 % in water):4.0-6.0
  Assay:≥98.0%
  Protein:≤0.1 %
  Sulfated ash:≤0.1 %
  Moisture:≤0.5%
  Heavy metals ( as Pb):<10ppm      
Arsenic:<3ppm        
Iron (Fe):<20ppm          
Total plate count:< 100 CFU/g
Storage:

2-10°C , in a dry place. Slightly hygroscopic. Allow to reach room temperature

before opening the package

Shelf life:2 Years under specified storage conditions

 

 FORMULATION GUIDELINES  
    *  Avoid amines and elevated temperatures
    *  Ensure pH range at 2.0-4.0
    *  Prevent from contact with α-Hydroxy acids, oxides like iron or zinc oxide or titanium dioxide, phosphoric acid esters

        and their salts
    *  Beware of high amounts of gel formers (e.g. Carbomers, Xanthan gum) or high amounts of ethanol
    *  Keep buffers at a minimum
    *  Preferable preservatives are phenoxyethanol and parabens.

 

DOSAGE  
     Ca.  2-5% in day care applications.
     Ca.  5-8% in classical self-tanning products.
     Ca.  8-15% in spray-tanning applications.

 

PROCESSING  
DHA should be processed cold (<35°C) and is incorporated into the aqueous phase or into the finished formulation. Slightly acidic pH of ca.4, ensures stability of DHA.

 

Documentation:

 

Dihydroxyacetone Brochure.pdf

Dihydroxyacetone formulations.pdf

msds dihydroxyacetone.pdf

 

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