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Full Spectrum Sunscreen SPF 30+



Published November 1, 2005
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Deionized water
51.587
Disodium EDTA (Versene NA2, Dow)
0.051
Carbomer (Carbopol ultrez 10, Noveon)
0.051
Butylene glycol (1,3 Butylene glycol, Celanese)
4.038
Phenoxyethanol, methylparaben, ethylparaben, butylparaben, propylparaben, isobutylparaben (Co-Sept PEP, RTD HallStar)
0.607
Triethanolamine (Trolamine 99 N.F., Ineos)
1.967
Octisalate (HallBrite OS USP, RTD HallStar)
5.085
Homosalate (HallBrite HS USP, RTD HallStar)
7.627
Diethylhexyl 2,6-Naphthalate (Corapan TQ, Symrise)
5.085
Dimethyl capramide (Spectrasolv DMDA, RTD HallStar)
2.034
Adipic /NPG/ bis-Cyanodiphenyl-propenoate /octyldodecyladipate copolymer (Polycrylene, RTD HallStar)
2.045
Avobenzone (Parsol 1789, DSM Nutritional)
3.051
Oxybenzone (Neo Heliopan BB, Symrise)
4.183
Polyglyceryl-3 distearate (Cremophor GS 32, BASF)
3.205
Sorbitan Isostearate (Crill6, Croda)
4.298
Stearic acid (RTD Stearic acid V-1655, RTD HallStar)
3.255
C30-38 olefin/isopropyl maleate/MA copolymer (Performa V 1608, New Phase Technologies)
0.812
Polyacrylamide, C13-14 isoparaffin, Laureth-7 (HallGel 305, RTD HallStar)
1.019

Procedure
In the primary vessel dissolve 2 in 1 and then stop mixing and sprinkle on 3. When 3 has fully wetted, resume mixing. In a separate vessel combine 4, 5 and 6 and then add to main vessel and heat this water phase to 80°C. To the secondary vessel add 7,8,9 and 10 and start mixing and heating this oil phase to 85°C. Add 11, 12 and 13 when the oil phase is at 50°C. When the oil phase is at 85°C, add 14, 15, 16 and 17. When both phases are homogeneous and at their designated temperatures, add the oil phase to the water phase with continued mixing without aeration. Maintain heat, mixing for five minutes and then homogenize for one minute (until a fine white emulsion is formed). Stop homogenizing, resume mixing and start cooling. When the batch is below 45°C, add 18. Mix until the batch is creamy smooth and below 35°C and then replace any water lost to evaporation. When again uniform, stop cooling and mixing and perform final quality assurance checks.

More Information
RTD HallStar, 1500 Rt. 517, Suite 305, Hackettstown, NJ 07840-2717 Tel: (908) 852-6128; Fax: (908) 852-1335 E-mail: rtdhallstar@cphall.com; Website: www.rtdhallstar.com


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