PhilGeis
Forum Replies Created
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Consider 1 and 3 months at 45C as relevant to 1 and 2 year exp. dates. Wouldn’t presume anything in rapid aging predicts 3 years.
Get 1,2 and 3 year real time data. 1 and 2 confirm rapid aging and 3 is instructive to preservative systems even if product no longer on market.Also see how US FDA sees stability testing of OTC drugs.
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It’s largely irrelevant. The product is diluted and rinsed off in use.
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Good luck - > 20 “Designated lists” and > 3000 ingredients.
Lists linked at https://www.cdph.ca.gov/Programs/CCDPHP/DEODC/OHB/CSCP/Pages/SB312.aspx#
Prob concern would be fragrance allergens of EU directive.Legislation
https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=201920200SB312 -
It is a really poor preservastive at any concentration and pH.
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Bacteria can grow in distilled water and filtration is unlikely to help.
As with any ingredient, quality is the responsibility of the maker and should be data based. -
What’s Germall III?
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Crazy George Deckner - great formulator
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Think it’s only a recommendation at this time. I understand, if implemented, it would require for formaldenyde releasers labeling - contains formaldehyde.
Think thye’ve recommended formaldehyde as an ingredient be placed on prohibited list.
That’s just my iunderstanding/
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From EU directive
Formaldehyde paraformaldehyde ►M51 (*) ◄ 0,2 % (except for products for
oral hygiene)
0,1 % (products for oral hygiene)
expressed as free formaldehydeI’m not sure the status of formaldehyde ongoing but above is current language.
Can’t address safety of a combination.
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Not aware it’s advanced beyond SCCS reco. Unfortunate that they considered only one side of the risk assessment.
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That is certianly one. Also offers competition for other trace elements - Fe, Mg, CU.
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Stanley said:Okay found it… wow, thank you very much! Just to make sure I understand the exponentials….1×102 is 100 and the 1×103 is 1000 cfu… I am assuming the 2 and 3 are exponentials.
Yup
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Without obvious mold - could be the usual suspects - cepacia or aeruginosa.
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the heart above reads “<3” in text.
the section goes on to say
The presence of pathogens would also be important in evaluating the microbial contents of a cosmetic. Pathogens or opportunistic pathogens whose incidence would be of particular concern include Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Candida albicans. Additionally, microbes normally regarded as nonpathogenic when introduced in certain ways (e.g., topically) may become opportunistic pathogenic and virulent when introduced in other ways (e.g., in wounds, or via cosmetics introduced into or through the skin). -
Sure - it was in an older version of https://www.fda.gov/food/laboratory-methods-food/bam-chapter-23-methods-cosmetics.
Current wording (revised this month) and thanks for asking - this changed just this last week!
Current, widely accepted standards for microbiological limits in cosmetics specify that the total number of microorganisms per gram or milliliter generally should not exceed:
- 1×102 colony forming units (CFU)/g or mL for cosmetics intended topically (i.e., applied to the surface of the body) for the eye area, mucous membranes, and children < 3 years old; and
- 1×103 CFU/g or mL for all other topical cosmetics.
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microbial contamination seems reasonable -
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Subsequently elaborated - they’re targeting small producers who can’t control the quality of their water. Think most of us understand the position of the EU and FDA - “preservatives” should not be used to correct for failed GMP’s. Those with experience know they are not effective in that context.
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Supplier offers it as a natural “substitute for water” that can preserve natural products.
As water is assumed to be natural, think it would be hard to explain why one would replace it with an much more expensive material other than to preserve. -
Phenethyl (Rose ether) has a rose odor that may clash with perfume. Not on directives and not that effective - certainly < phenoxy.
None are that great - esp. in a shampoo/conditioner context - and very few on directives (odd for a German publication). You’ll find little safety data for many.Ferment Leucidal is vey weak abnd reportedly adulterated ala GSE https://pubs.acs.org/doi/abs/10.1021/jf5063588.
Ethanol demands 20%. Lesser levels are not ‘sehr gut” any more than the rest of those with this silliness.
One combination I know is effective benzyl alcohol/benzoate is labeled limited (small)
Magnolia extract like “Parfum” is another uncharacterized/ uncontrolled magic potion.
Glyeryl caprylate is pseudomonas ester food.
Combined organic acids are just that - organic acids - none is sehr gut.
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zetein said:Is it true ammonium system is harder to preserve than sodium due to extra nitrogen source?
No
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Yes - canlt answer in that context - no data.
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FA releasers have been used in shampoos with this ingredient for decades.
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suswang8 said:Hi, all.
I think I had actually been thinking of this one:
https://www.olionatura.de/rohstofftabellen/konservierertabelle.phpbut there are a few ones “missing,” such as phenethyl alcohol. Either way, still a great, concise resource for those who are natural-focused.
Most are “natural”: only by the Ecocert/COSMOS “credentialing”. Be cautious of all incl penethyl alcohol. It can partition into packaging material.