Re: Phenonip with salt scrub - how much?

[Guest guest]

On Sun, 02 Dec 2001 21:20:28 -0000, spoilmesoapworks@... wrote:

>I have read endless posts on phenonip but can't find a clear answer

>to my question. Sorry for being repetative as I'm sure you've all

>heard this question a hundred times before.

Actually, not realy a hundred times, I think it was just once.

>When making salt scrubs, do I use phenonip at a rate of 1% of the

>total weight of the product? Or just the oils in the batch?

From the archives:

>Thank you Maurice and for answering my question. You both gave

>me opposite answers, so I'm still a little confused. Sorry.

>

>, I understand what you are saying, about using 1% Phenonip and

>99% everything else. That makes sense to me in most cases, but in

>this case where the Phenonip concentration will be much higher in the

>liquid portion of the scrub due to the bulk of the scrub

>being " insoluble " for the most part - then I don't understand. The

>oil portion is really what stays on the skin, not the salt, so I

>worry that the concentration may be too high. I just want to make

>sure that having a concentration higher than 1% in the liquid phase

>will be safe.

>

>I apologize if this question seems ignorant - I know I have a lot to

>learn still.

>

>Thank you for your help,

>Jenn D

You noticed.

,

You are correct. Intuitively, that's what I thought also. But if you

consider the product parameters in Jenn's message, we are dealing with

a mixture, not a solution, of salt and oil.

Assuming you keep the Phenonip at 1%, as you increase the amount of

Salt, you must, therefore, decrease the amount of Oil.

If we look at the extreme cases:

When we have 99% Oil, 1% Phenonip and 0% Salt, then we have 99% Oil,

and 1% Phenonip

And when we have 0% Oil, 1% Phenonip and 99% Salt, then we have 0% Oil,

and 100% Phenonip

I have no idea what percent Oil is in Jenn's formula, but if we assume

that the percentage of Oil is between 44% and 24%, then we have the

following relationships:

44% Oil, 1% Phenonip and 55% Salt, then we have 97.8% Oil, and 2.2%

Phenonip

39% Oil, 1% Phenonip and 60% Salt, then we have 97.5% Oil, and 2.5%

Phenonip

34% Oil, 1% Phenonip and 65% Salt, then we have 97.1% Oil, and 2.9%

Phenonip

29% Oil, 1% Phenonip and 70% Salt, then we have 96.7% Oil, and 3.3%

Phenonip

24% Oil, 1% Phenonip and 75% Salt, then we have 96% Oil, and 4%

Phenonip

I don't believe exceeding a level of 1% Phenonip in the Oil is

warranted.

Maurice

>Jenn,

>

>Preservatives are always used and percentages are always based on the total

>of the formula. In other words you will have 1% preservative and 99% other

>ingredients. This is regardless of what those other ingredients may be.

>Hope this helps clarify this dilemma for you.

>

> Young

>KY Labs

>Innovators of Fine Personal Care Products

>www.kylabs.com

>

> please help - usage of Phenonip...

>

>Hello all! I'm in the process of designing a sugar/salt scrub

>recipe and have everything including the Phenonip. I know that

>the Phenonip is to be used at a maximum of 1%. My question: is

>it to be used at 1% of the OILS in the recipe (or the liquid portion)

>or at 1% of the final product (Oils and Salts). It seems to me that

>it would be 1% of the oils, as the salt/sugar would be akin to

>solid beads in an oily mixture as they only add mass and do not

>contribute to the liquid portion. I've totally confused myself! I've

>looked in the archives and cannot find the answer. Can anyone

>help me with this?

>

>Also, I've heard conflicting data regarding sugar in scrubs

>causing infections. I feel this is nonsense, but to be on the safe

>side I would like to ask you all.

>

>Thanks so much, this is such a valuable forum

>Jenn D

>

Maurice

------------------------

Maurice O. Hevey

Convergent Cosmetics, Inc.

http://www.ConvergentCosmetics.com