David
Forum Replies Created
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Hi nijam, any special brand in mind? / where are you?
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Isn’t so that there will always be a grey area somewhere, drugs do not always cure. Cosmetics do sometimes interfere with cell metabolism. intended or unintended.
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only difference I hear is that ALES is far more popular in the US than in EU….
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In EU you are allowed to use up to 2% Salicylic acid in cosmetics, but you can’t make a drug claim (see last blog by Perry)
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ok that is to far away - good luck!
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For marketing purposes - yes.
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same question - where in the world are you?
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yes shampoo is for removing oily components not adding them (as long as you don’t like oily hair)
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How much does a formulation cost?
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main reason not to use EDTA is that it is not easily biodegradable
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for a start you need:
- list of ingredients- volume- name of the product- address- pao - symbol- use instructionsSome products also need warnings on the labelDid I forget something? -
@ heraklit , do you have any reference on where it is stated in the EU regulation ? Only thing i can find is this “The claim “dermatologically tested” implies that the product was tested on humans under the
supervision of a dermatologist. Depending on the presentation of the claim, it may, refer to a
specific efficacy or tolerance of the product.”
Nothing on how it should be done or not even if it has to pass the test like Bobzchemist noted.
http://ec.europa.eu/consumers/sectors/cosmetics/files/pdf/guide_reg_claims_en.pdf -
Too many questions in one. Please narrow your question. Start with location and product…
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@braveheart yes, no reason to use anything else if it is safe and works.
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A place to start is to learn about the HLB system
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You can probably dilute it - but I would use propyleneglycol since it is in there already. You will have to count in some extra PG in the formula though.
And @MarkBroussardDiluting 4 times equals a 4 times more accurate scale as long as the accuracy is linear, so it is not a bad idea in theory. I use it frequently to weigh dyes.But on the other hand - 2 decimal places is minimum for developing cosmetics - otherwise you will end up with a lot of diluting or larger batches like Belassi said. -
Thanks, will DMDM Hydantoin work alone?
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Thanks Perry, I think I will hang here this year too
Happy new year everybody! -
@ belassi what is so horrible with zink pyrithione?
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@Bill_Toge I disperse it in glycerin or propylene glycol @0.1 - 0.4%, then add it slowly @ room temp. Most stabilty problems I had with “ringing” gels
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@ nasrins what do mean with “just a report”? it is a peer-reviewed scientific article. This is usually viewed as the most authentic source of science.
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@ Bobzchemist Is this one of the few exceptions?
(sunscreen rinse-off) -
@Belassi I agree on that a body wash has to be formulated in a way that it leaves a good skin feeling, but I think what is meant here is if panthenol has a (deeper) moisturizing effect in a rinse-off product.(which I find hard to believe)
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@ Belassi No wonder FDA didn’t approve, if I understand it correctly the company even claimed that lauricidin could inactivate HIV!
However their homepage has changed substantially since the warning letter..Interesting ingredient but still a long way to go before the efficacy can be proved?… -
@ nasrins, just ask then