%'s in formulations

[Guest guest]

Thank you so much to Maurice and everyone else for help in determining

percentages of ingredients to use in formulations! I could use some help in

determining percentages of the following to be used in a lotion-type moisturizer

(for face and body use), please:

Allantoin (also, can this be used in hair care products, and at what %?)

Hyluranic acid (I probably misspelled this)

Green tea extract (and does anyone know a source for this?)

Thank you!

- Ela

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[Guest guest]

>I could use some help in determining percentages of the following to be used in

a lotion-type moisturizer (for face and body use), please:

>

>Allantoin (also, can this be used in hair care products, and at what %?)

Allantoin is approved by the FDA for Skin Protectant Drug Products. A

safe and effective level is between 0.5% and 2%.

Quoting from the ISP/Sutton webpage:

http://www.ispcorp.com/products/hairskin/preserve/pres1.html

" The U.S. Food and Drug Administration (FDA) has classified Allantoin

as a Category I (safe and effective) active ingredient skin protectant.

The FDA's Tentative Final Monograph on skin protectant drug products

for Over-The-Counter (OTC) human use was published in the Federal

Register (Volume 48, No. 32, pp. 6820-33 and Volume 55, No. 11, pp.

25240-81). Based on the wide use and clinical acceptance of Allantoin,

as well as published reports in the literature, the FDA has approved

the following statements for non-prescription, drug products containing

Allantoin at 0.5% to 2.0%.

For the temporary protection of minor cuts, scrapes, burns and sunburn.

Helps prevent and temporarily protects chafed, chapped, cracked, or

windburned skin and lips.

Relieves dryness and softens cold sores and fever blisters.

Helps treat and prevent diaper rash. Protects chafed skin/minor skin

irritation due to/associated with diaper rash and helps protect

from/seal out wetness.

Allantoin is considered to be nontoxic, nonirritating and nonallergenic

by the Schwartz patch test on 200 individuals, as published in the

Federal Register (Volume 43, No. 151, pp. 34632-34). Clinical and

marketing experience has confirmed that Allantoin is safe and effective

in the dosage range recommended (0.5 to 2.0%) as a skin protectant.

IMPORTANT NOTE

The U.S. Food and Drug Administration acknowledges that Allantoin at

0.5 to 2.0% concentration can be used for the prevention and treatment

of chafed, chapped, cracked, sunburned or windburned skin or lips, cold

sores, fever blisters and diaper rash, but considers such explicit

claims as drug claims.

When Allantoin is added to a personal care product and no claims are

made the product remains a cosmetic. "

>Hyluranic acid (I probably misspelled this)

You probably mean Hyaluronic Acid. The last time I looked in 1995,

Hyaluronic Acid was $1600 per pound. You would be better with Sodium

Hyaluronate which is significantly less expensive. This is an

excellent humectant.

I've use Hyasol-BT from Pentapharm. Pentapharm products are

distributed in the US by Centerchem

http://www.centerchem.com

>Green tea extract (and does anyone know a source for this?)

There are many source for this material. Dragoco comes to mind.

Maurice

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Maurice O. Hevey

Convergent Cosmetics, Inc.

http://www.ConvergentCosmetics.com