ExtratanTM | ||
-The most popular self tanning agent | ||
INCI Name | Dihydroxyacetone | |
Synonyms | 1,3-didhydroxyacetone; DHA | |
Chemical Name | 1,3-Dihydroxy-2-propanone | |
CAS No. | 96-26-4 | |
EINECS | 202-494-5 | |
Molecular Formula | C3H6O3 | |
Molecular Weight | 90.08 | |
Chemical Class | Carbohydrate ( 3- carbon ketose) | |
Melting Point | 75-80°C | |
Boiling Point | 188°C ( decompositions ) | |
Density | 1.52g/cm3(20°C) | |
Water Solubility | >250g/L(20°C) | |
HS Code | 2914400090 | |
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 formulations.pdf