Question on Provitamin B5

[Guest guest]

I have a question on the difference of supposedly the same

ingredient, Panthenol Provitamin B5, received from two different

companies. What is the difference between the two products and how do

I use one over the other. I am confused over how and which one to use.

· This one is labeled D-panthenol. INCI: D-pantothenyl alcohol. This

is a clear viscous liquid from Somerset Cosmetic Co. This liquid is

very thick and needs to be heated to measure and use. Recommended

usage is .5-3%.

· The other one is labeled dl Panthenol. INCI: Panthenol. It is a

clear liquid that is already thin and can be used as is. This one is

from The Herbarie Company. Recommended usage is .5-8%.

[Guest guest]

Hi ,

If the D-panthenol you are getting from Somerset is d-pantothenyl alcohol as

stated, I can tell you that their INCI designation is incorrect. The correct

INCI name for d-pantothenyl alcohol or d-panthenol is simply " Panthenol " on your

label. Here's a breakdown of 3 forms of panthenol, the first and third are what

Somerset and The Herbarie sell.

ONE:

D-panthenol is 100% active. It stable to air and light, but not to heat, so

repeatedly heating it to measure and use it is not a good idea. That's one

of the reasons it can be difficult to use. While you generally need to use less

of it in a formulation, it usually significantly more expensive.

Here are a couple of links to industrial sources of this product:

D-Panthenol USP is a colorless, clear, highly viscous, hydroscopic liquid that

can solidify on prolonged storage. BASF indicates this product, properly

stored, should be stable for 36 months.

http://www.basf.com/businesses/consumer/cosmeticingredients/docs/d_panthenolusp.\

pdf

RITAPAN D (Rita's brand name for D-Panthenol) or Pantothenyl Alcohol occurs as a

colorless, viscous liquid which is slightly hygroscopic. It has a characteristic

odor and has a bitter taste. It is soluble in water and alcohol. RITAPAN D is

sensitive to heat. Shelf life at 20°C is at least 12 months. RITAPAN D is not

stable when exposed to strong acids and bases.

http://www.ritacorp.com/SPECS%20PDF/FLAVINOIDS,%20CO-ENZYMES%20 & %20VITAMINS/Rita\

pan%20D.pdf

TWO:

DL-Panthenol is the racemic form of D-panthenol or pantothenyl alcohol. It is a

powder that is 50% active. It is hygroscopic (absorbs water from the air) and

should be stored tightly sealed or it will form a hard solid and be difficult to

use and measure.

RITAPAN DL is dl-Panthenol which is the racemic form of Pantothenyl Alcohol.

This material is a white to creamy white powder. Another industry accepted term

is provitamin B-5. RITAPAN DL has a principal use in hair thickening and

moisturization.

http://www.ritacorp.com/SPECS%20PDF/FLAVINOIDS,%20CO-ENZYMES%20 & %20VITAMINS/Rita\

pan%20DL.pdf

THREE:

DL-Panthenol can also be purchased pre-mixed 1:1 with water, for formulation

ease. It is 25% active and quite stable. That is the product The Herbarie

sells. Of the three, it is probably the easiest to use in formulating and the

easiest to store.

RITAPAN DL 50% is a clear and slightly yellowish liquid

http://www.ritacorp.com/SPECS%20PDF/FLAVINOIDS,%20CO-ENZYMES%20 & %20VITAMINS/rita\

pan%20dl%2050%25.pdf

When using any of these products, the amount you use can be adjusted

accordingly.

HTH,

Welch

Lotioncrafter

http://lotioncrafter.com

----- Original Message -----

From: Stradley

Sent: Thursday, January 13, 2005 12:06 PM

I have a question on the difference of supposedly the same

ingredient, Panthenol Provitamin B5, received from two different

companies. What is the difference between the two products and how do

I use one over the other. I am confused over how and which one to use.

· This one is labeled D-panthenol. INCI: D-pantothenyl alcohol. This

is a clear viscous liquid from Somerset Cosmetic Co. This liquid is

very thick and needs to be heated to measure and use. Recommended

usage is .5-3%.

· The other one is labeled dl Panthenol. INCI: Panthenol. It is a

clear liquid that is already thin and can be used as is. This one is

from The Herbarie Company. Recommended usage is .5-8%.