Forum Replies Created

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  • OldPerry

    Professional Chemist / Formulator
    February 28, 2018 at 5:05 pm in reply to: W/Si emulsion concealer changing color as it dries

    Thanks for the update!

  • OldPerry

    Professional Chemist / Formulator
    February 28, 2018 at 1:50 pm in reply to: Parabens - who to believe?

    @Skypirate - You raise a great question. Information about product safety is something consumers can have difficulty finding.  However, I would just suggest you stick to reliable sources like people who actually have degrees in Toxicology.

    The article you linked to is the Natural News which is equivalent to the National Enquirer. It is a BS publication designed to sell products through fear mongering.  And the “doctor” who is quoted in the article is “Leading naturopathic doctor Trevor Cates”

    Naturopathic is not a doctor! They are experts in the fairy tale that is naturopath. 

    And even if you can find an actual doctor who makes this claim (I’m sure you can) that doesn’t mean much either. Here are some things you should do when you come across claims like this.  

    1.  Is the person making the claim trying to convince you to buy something in which they benefit from you believing the claim? “Dr” Trevor Cates does. https://store.thespadr.com/  Any claim she makes should be met with a high degree of skepticism.

    2. Is the person making the claim an expert in the subject? The Spa Dr claims to be an expert in skin.  She got a bachelors degree in English, a masters degree in Psychology and an ND degree in the fake subject of naturopathy. (https://www.linkedin.com/in/trevorcates/) This does not make her an expert in Toxicology which is the subject of the claims.

    3.  What do the consensus of experts on the subject say?  We are all biased. Therefore the claims of any single scientists should not hold more weight than the claims of the consensus of scientists.  On the subject of parabens the consensus is clear, they are safe to use at the levels used in cosmetics.

    If you remember those three questions whenever you hear a claim about any subject, you’ll be more likely get to the truth.

  • OldPerry

    Professional Chemist / Formulator
    February 28, 2018 at 1:24 pm in reply to: Interesting article on Natural and its “definition.”

    I’m skeptical they’ll be able to come up with a legal definition of “natural”.  It seems much more complicated than a definition of “hypoallergenic” and they couldn’t do that.

  • OldPerry

    Professional Chemist / Formulator
    February 27, 2018 at 6:55 pm in reply to: Amount of bee venom in anti-wrinkle facial cream

    What research has convinced you that topically applying bee venom will have any effect as an anti-wrinkle ingredient on skin?

  • OldPerry

    Professional Chemist / Formulator
    February 27, 2018 at 4:35 pm in reply to: Welcome to the forum

    Welcome to all the new members!  Feel free to participate in current discussions or start a new one.

  • OldPerry

    Professional Chemist / Formulator
    February 27, 2018 at 2:04 pm in reply to: Amount of bee venom in anti-wrinkle facial cream

    Since it doesn’t actually have any effect, 0.01% is the way to go.

  • OldPerry

    Professional Chemist / Formulator
    February 19, 2018 at 8:53 pm in reply to: Panthenol Based Hair Treatment without Quats

    Polyquaternium 11 wouldn’t qualify as natural or organic under any standards I’m familiar with.  I’ve never found panthenol to be noticeably effective. 

    You might try coconut oil. 

    But quats & silicones will actually work better. If performance is a higher priority than “natural” that’s the route I’d go. If “natural” is what you want then you’ll have to sacrifice performance.

  • OldPerry

    Professional Chemist / Formulator
    February 17, 2018 at 4:41 pm in reply to: Liquid liner not drying

    Evaporation causes the product to dry. Without more information, that’s the best I can answer.

  • OldPerry

    Professional Chemist / Formulator
    February 15, 2018 at 5:03 pm in reply to: vitamin efficiency on skin

    Please, let’s keep these discussions civil.

    @alihsanyuksel - this forum works best when people ask specific questions.

    the article posted is a good start. So is Google Scholar. If you don’t know, this is a search engine specifically for academic papers

  • OldPerry

    Professional Chemist / Formulator
    February 14, 2018 at 7:36 pm in reply to: for silky shampoo

    That’s about the right amount of Guar, although I typically used 0.2%. 

    What specifically do you mean when you say “my hair becomes terrible”?

  • OldPerry

    Professional Chemist / Formulator
    February 14, 2018 at 7:34 pm in reply to: how does this formulation work?

    @PeiHoong - I was referring to non-polymeric emulsions, those based on anionic, cationic, or nonionic surfactants. Polymeric emulsifiers handle salt better.

  • OldPerry

    Professional Chemist / Formulator
    February 13, 2018 at 4:07 pm in reply to: Dry or Eczematous: Anything truly better than petroleum jelly?

    @ethelcurtis - Vaseline is petrolatum

  • OldPerry

    Professional Chemist / Formulator
    February 13, 2018 at 1:11 pm in reply to: Regulation Update: Cyclosiloxanes in the EU

    What alternatives have you been using?

  • OldPerry

    Professional Chemist / Formulator
    February 13, 2018 at 1:02 pm in reply to: for silky shampoo

    Experiment with different levels of ingredients and add some conditioning ingredients.

    Right now you have no conditioning agents in your formula. Adding PQ7 or Guar might help.

  • OldPerry

    Professional Chemist / Formulator
    February 13, 2018 at 12:59 pm in reply to: how does this formulation work?

    NaCl typically makes emulsions less stable.

  • OldPerry

    Professional Chemist / Formulator
    February 12, 2018 at 1:18 pm in reply to: Vitamin C in Sunscreen

    What noticeable benefit would you be trying to get by adding the MAP?

    If it is an ingredient you add such that no one can tell any difference whether it’s in there or not, you will get the same effect on sales by adding a tiny amount (0.1%).

  • OldPerry

    Professional Chemist / Formulator
    February 12, 2018 at 1:15 pm in reply to: The downside of petrolatum and mineral oils.

    I heard about this some time back. 
    http://www.bbc.com/news/uk-39308748

    And we talked about it on the Beauty Brains. http://thebeautybrains.com/2017/04/can-hair-straighteners-stop-your-hair-from-being-naturally-curly-episode-160/

    I’m not sure it is just petroleum based products that would be a problem. Even natural oils could leak into the fabric and build up over time to dangerous levels if the sheets are never washed.

  • OldPerry

    Professional Chemist / Formulator
    February 12, 2018 at 1:09 pm in reply to: Career path advice

    Depends on the company, but a larger corporation will and maybe a smaller company might too.

  • OldPerry

    Professional Chemist / Formulator
    February 8, 2018 at 7:43 pm in reply to: preservation help

    Yes

  • OldPerry

    Professional Chemist / Formulator
    February 8, 2018 at 7:14 pm in reply to: lotion spreadability

    @chemnc - what is your objection to parabens?  If someone wants an effective, safe preservative there is really nothing better.  If someone wants to give in to unproven, scaremongering, then perhaps it’s worth looking at something less reliable.

    Phenoxyethanol (Optiphen) is hardly foolproof.

  • OldPerry

    Professional Chemist / Formulator
    February 8, 2018 at 12:09 am in reply to: NACL AND GLYCERIN IN WATER PHASE

    I’ve always found that NaCl in an emulsion leads to instability so avoided it.

  • OldPerry

    Professional Chemist / Formulator
    February 8, 2018 at 12:06 am in reply to: Welcome to the forum

    Welcome to the group!  We have chemists from around the world. I think there are a couple from Oz.

    @Shree_18 - you’ll find talk about “natural” products here but the opinions will be supported by science which is not the case in many other forums that touch on the subject.

  • OldPerry

    Professional Chemist / Formulator
    February 7, 2018 at 2:24 pm in reply to: lotion spreadability

    Beeswax is not a great emulsifier. You should pick something else but the exact one to use will depend on the type of oil in your formula.

    Why are you using Centrimide?

    A silicone would help with spreadability.

  • OldPerry

    Professional Chemist / Formulator
    February 7, 2018 at 2:21 pm in reply to: preservation help

    Methylparaben, Ethylparaben, DMDM Hydantoin

  • OldPerry

    Professional Chemist / Formulator
    February 5, 2018 at 7:27 pm in reply to: Quantifying the moisturizing effects of your formulas on a budget - possible?

    You could buy your own Corneometer  and set up a test yourself. That might be less expensive in the long run. You can then get friends and family to be your subjects.  You need at least 30 subjects to get statistical significance. 

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