liquipar oil vs liquipar optima

[Guest guest]

I understand the difference in ingredients, but what is the difference in

performance?

Also in a foot scrub, would I need to add t-50 since I am adding shea butter and

coconut oil?

If so how much would you suggest.

thanks De

[Guest guest]

>I understand the difference in ingredients,

You are correct, there is a differnece between these to preservative systems.

LiquaPar Oil is a blend of Isopropylparaben, Isobutylparaben and Butylparaben

LiquaPar Optima is a blend of Phenoxyethanol, Methylparaben, Isopropylparaben,

Isobutylparaben and Butylparaben.

>but what is the difference in performance?

It's dependent on the product being preserved, use level and safety and by lab

testing.

For an expert opinion, I'd contact

Steve Orofino

ISP/Sutton

116 Summit Avenue

P.O. Box 837

Chatham, NJ 07928-0837

Tel:

FAX:

Email: SOrofino@...

Personally speaking and after much thought, I would have reservations using 1%

LiquaPar Optima or Phenonip or Uniphen P-23 in a salt scrub. When you use these

preservatives in salt scrubs at 1%,you are rubbing approximately 0.7%

Phenoxyethanol into abraded skin. If you lower the level of LiquaPar Optima or

Phenonip or Uniphen

P-23 to 0.25% you have also lowered the levels of the parabens.

In the EU, there are restrictions on the use and use level of Phenoxyethanol.

For example, when you add 0.25% Phenoxyethanol to your scrub, you are actually

adding

0.179% to 0.183% Phenoxyethanol

0.038% to 0.043% Methylparaben

0.009% to 0.011% Ethylparaben

0.004% to 0.006% Propylparaben

0.004% to 0.006% Isobutylparaben

whereas, if you added 0.1% LiquaPar Oil

0.04% Isopropylparaben

0.03% Isobutylparaben

0.03% Butylparaben

>Also in a foot scrub, would I need to add t-50 since I am adding shea butter

and coconut oil?

>If so how much would you suggest.

If you are speaking of Covi-ox T-50, I'd follow the manufactures

recommendations:

http://groups.yahoo.com/group/Cosmeticinfo/files/Ingredients/COVIOX%20T50.pdf

Maurice

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Maurice O. Hevey

Convergent Cosmetics, Inc.

http://www.ConvergentCosmetics.com

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