Comments on: Math Used in Cosmetic Product Formulation http://chemistscorner.com/math-used-in-cosmetic-product-formulation/ Cosmetic science resource site where you can learn all about cosmetic chemistry Thu, 09 Feb 2012 21:38:22 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Kel http://chemistscorner.com/math-used-in-cosmetic-product-formulation/#comment-1992 Kel Tue, 02 Nov 2010 01:46:38 +0000 http://chemistscorner.com/?p=589#comment-1992 That's very helpful. Thank you. That’s very helpful. Thank you.

]]> By: Perry http://chemistscorner.com/math-used-in-cosmetic-product-formulation/#comment-1967 Perry Sat, 30 Oct 2010 19:13:01 +0000 http://chemistscorner.com/?p=589#comment-1967 While a chemist is not able to exactly analyze the % of chemicals in a formula, we can get pretty close. It really depends on the product but there really aren't any personal care formulas that can't be suitably duplicated. While a chemist is not able to exactly analyze the % of chemicals in a formula, we can get pretty close. It really depends on the product but there really aren’t any personal care formulas that can’t be suitably duplicated.

]]> By: Kel http://chemistscorner.com/math-used-in-cosmetic-product-formulation/#comment-1966 Kel Sat, 30 Oct 2010 19:09:46 +0000 http://chemistscorner.com/?p=589#comment-1966 Is a chemist able to determine the percentage of chemicals used in a product (for example, a hair product) by analyzing it? I'm interested in how close "generic" products which claim to be dupes of another product actually are. Is a chemist able to determine the percentage of chemicals used in a product (for example, a hair product) by analyzing it? I’m interested in how close “generic” products which claim to be dupes of another product actually are.

]]> By: Kelly http://chemistscorner.com/math-used-in-cosmetic-product-formulation/#comment-1888 Kelly Wed, 20 Oct 2010 17:56:25 +0000 http://chemistscorner.com/?p=589#comment-1888 Hi Melina, In the US, UC (OH) and Faleigh Dickinson (NJ) are the only programs I know of with cosmetic chemistry focus. The UC masters program is available on-line so it does not require you to move, but you have to visit campus for a two-day laborotory course. Because in my opionion, solely listening to lectures is no substitute for the hands on experience these programs provide. Hi Melina,
In the US, UC (OH) and Faleigh Dickinson (NJ) are the only programs I know of with cosmetic chemistry focus. The UC masters program is available on-line so it does not require you to move, but you have to visit campus for a two-day laborotory course. Because in my opionion, solely listening to lectures is no substitute for the hands on experience these programs provide.

]]> By: melina vega http://chemistscorner.com/math-used-in-cosmetic-product-formulation/#comment-1798 melina vega Tue, 12 Oct 2010 15:17:34 +0000 http://chemistscorner.com/?p=589#comment-1798 Is UC the only college that has classes of cosmetic chemistry? Because I don't think I'm willing to move. Is UC the only college that has classes of cosmetic chemistry? Because I don’t think I’m willing to move.

]]> By: Adnène http://chemistscorner.com/math-used-in-cosmetic-product-formulation/#comment-1768 Adnène Wed, 06 Oct 2010 20:50:04 +0000 http://chemistscorner.com/?p=589#comment-1768 Thank you Kelly. Thank you Kelly.

]]> By: Kelly http://chemistscorner.com/math-used-in-cosmetic-product-formulation/#comment-1752 Kelly Mon, 04 Oct 2010 16:38:20 +0000 http://chemistscorner.com/?p=589#comment-1752 Hi Adene, It really depends on the type and strength of claim you are trying to make. If you want to clearly link the extract to an efficacy claim you want to have supporting data. Often times suppliers use in vitro test methods to make recommendations for use level, but ideally you want significant in vivo data to validate your claim. Claims also have legal and regulatory implications so it is best to err on the side of caution. Hope this helps. -Kelly Hi Adene,
It really depends on the type and strength of claim you are trying to make. If you want to clearly link the extract to an efficacy claim you want to have supporting data. Often times suppliers use in vitro test methods to make recommendations for use level, but ideally you want significant in vivo data to validate your claim. Claims also have legal and regulatory implications so it is best to err on the side of caution. Hope this helps. -Kelly

]]> By: Adnène http://chemistscorner.com/math-used-in-cosmetic-product-formulation/#comment-1746 Adnène Mon, 04 Oct 2010 09:42:27 +0000 http://chemistscorner.com/?p=589#comment-1746 Thank you for your answers Kelly and Perry. Another question that arises is how to know the concentration of active substances in the extract that we may use in its formula to ensure efficacy without having to get into a clinical study. Is it enough to trust the supplier's recommendations or doese exist any other information sources where a cosmetologist can find happiness. Thank you and excuse the newbie questions :) Thank you for your answers Kelly and Perry. Another question that arises is how to know the concentration of active substances in the extract that we may use in its formula to ensure efficacy without having to get into a clinical study.
Is it enough to trust the supplier’s recommendations or doese exist any other information sources where a cosmetologist can find happiness.
Thank you and excuse the newbie questions :)

]]> By: Kelly http://chemistscorner.com/math-used-in-cosmetic-product-formulation/#comment-1741 Kelly Sun, 03 Oct 2010 15:19:52 +0000 http://chemistscorner.com/?p=589#comment-1741 I would also suggest single sourcing extracts if the specifications and extraction methods do not match exactly between suppliers because chemical composition, solvents, and preservatives often vary considerably. So even at low concentrations in the final formulations the differences may manifest in efficacy as well as instability of color, odor, preservative efficacy, etc. I would also suggest single sourcing extracts if the specifications and extraction methods do not match exactly between suppliers because chemical composition, solvents, and preservatives often vary considerably. So even at low concentrations in the final formulations the differences may manifest in efficacy as well as instability of color, odor, preservative efficacy, etc.

]]> By: Perry http://chemistscorner.com/math-used-in-cosmetic-product-formulation/#comment-1740 Perry Sun, 03 Oct 2010 15:08:48 +0000 http://chemistscorner.com/?p=589#comment-1740 Typically when you make a formulation you limit the number of suppliers for any ingredient to 2 or 3. Then you set a specification for those suppliers that they have to provide you material at a certain active %. But if you are going to use different % concentrations then you'll want to figure out the % active in your formula. Typically when you make a formulation you limit the number of suppliers for any ingredient to 2 or 3. Then you set a specification for those suppliers that they have to provide you material at a certain active %.

But if you are going to use different % concentrations then you’ll want to figure out the % active in your formula.

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