Agate

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Agate
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  • @ngarayeva001 Do you know of a supplier that sells the vegetable-oil-like fractionated coconut oil? I've been wanting to try it for a while, but haven't been able to find a supplier.
  • @helenhelen Glad to hear you're happy with it! :)
  • It's true I can manage with my bamix and emulsifying attachment right now. However, I have seen that the consistency with a rotor/stator homogenizer can get quite a lot thicker, so I do think it makes sense to get a small homogenizer if the plan is …
  • You may find this interesting: https://blog.euromonitor.com/redefining-the-lipstick-effect-examples-of-recession-proof-categories/ Basically, the thesis is that if people don't have the money to treat themselves with big ticket items, they buy "…
  • I see, thanks for explaining. I do not have an explicit source and instead based that statement on the absence of a reliable source recommending sprays. Very interesting statement you found in the FDA policy, it raises a few potential issues I hadn'…
  • @helenhelen It does seem to be very well received! A modular, serviceable solution from a small manufacturer is right up my street as well. As much as I like the idea of the cordless option, I'd personally go for corded. Short battery life (some say…
  • I definitely understand your reservations about purchasing an item which has a high probability of becoming a wasteful paperweight. One more option I just came across, after thinking I'd already seen every possibility: https://www.usefulstuff.de/pr…
  • I can't comment on that specific homogenizer, though if the 1000mPas maximum viscosity is true I would also be concerned. I've been looking for a similar homogenizer myself, and am currently most interested in this one: https://www.amazon.de/Homoge…
  • Maybe it is this study? https://www.sciencedirect.com/science/article/abs/pii/S0195670113000297
  • We've already discussed this in the other thread, no? The issue that I see is that most spray bottles that consumer hand sanitizer is sold in do not dispense enough to achieve full coverage and sufficient contact time, within a reasonable amount of …
  • Simple process to make soap with lye leached from wood ash: https://www.youtube.com/watch?v=c2Ka0jrOa6A As a generalization, hardwood works better than softwood as it contains more potassium.
  • (Quote) Fair enough, whichever way you can achieve that enough product is dispensed. I personally wouldn't know how to do that, and I imagine many DIYers reading on here won't either, so that's who my admittedly generalized warning was geared toward…
  • @lmosca Thanks for explaining, that makes sense to me now. Since you're saying that isethionic acid can be relatively easily purified I imagine that's how they're making it "1,4-dioxane free".
    in Future Problem Comment by Agate April 12
  • @Perry Thanks for the warning, I definitely don't want to set myself up for trouble with the FDA.
  • @MarkBroussard Clearly most people don't know how to effectively use sanitizer and are safer washing hands with soap, but this isn't always practical. So I argue that a bottle which easily dispenses the right amount increases the odds of people usin…
  • I'm considering using Sodium Lauroyl Methyl Isethionate. Is it made using ethylene oxide? I've read that isethionates are made through ethoxylation, yet the manufacturer claims that it's "1,4-Dioxane free", so I'm not sure what's true.
    in Future Problem Comment by Agate April 11
  • @Perry Do the same regulations apply for colour(ed) materials which have another purpose in the formula, either functional or as a claims ingredient? Could one argue that carrot oil is a claims ingredient or has some sort of benefit for the formula,…
  • @RDchemist15 You're exactly right, contact time is the issue. If you spray, you just won't apply enough liquid to ensure that you get full coverage for long enough, as the little amount that gets sprayed will evaporate too quickly. Theoretically, I …
  • (Quote) As a medical professional, I feel a duty to point out that sprays are absolutely not appropriate for hand sanitization. This is a very common but dangerous misconception due to many sanitizers being wrongly sold as sprays. It is true that li…
  • The WHO formula should not be in a spray. It's a dangerous way of application as you are guaranteed to achieve incomplete disinfection. If you use google to search this forum (query: site:chemistscorner.com hand sanitizer), you'll find answers to yo…
    in Hand Gel advice Comment by Agate April 9
  • A few years ago I spent something like $20 on a 16oz. "anti-allergy" shampoo for our cat... gullible pet owners aren't a bad market.
  • Easy solution: Follow the WHO formula (https://www.who.int/gpsc/5may/Guide_to_Local_Production.pdf) which doesn't include or require a gelling agent in the first place. It's simple, it's cheap, ingredients are available, and most importantly it's pr…
    in Hand Gel advice Comment by Agate April 8
  • I've not yet made a shampoo bar myself, I have just read in multiple places that many shampoo bars benefit from extended drying time. One example: (Quote) https://www.humblebeeandme.com/mango-mango-shampoo-bar/ I'm not confident that this alone wi…
  • How long did you let it dry before use?
  • Thanks to both for weighing in. With the cocoyl being prone to variability it makes sense to me that the more consistent lauryl is used as the industry standard. Since I am looking to go into a niche market where people might well dismiss a product …
  • @em88 I personally enjoy reading the detailed posts by @lmosca. I think it's especially helpful for a relative beginner like myself to have things explained that more advanced members may find obvious or otherwise superfluous.
  • @Fekher What WHO document are you referring to?
  • Ah that makes sense, thanks for sharing. :)
  • As far as I'm aware you wouldn't need a preservative, provided that the person who uses it doesn't accidentally or intentionally add water to the container. If you wanted to have some protection for that eventuality, you may still want to add a pres…
  • Now that you mention it I realize that there was some thickening as the pH dropped, when I get my pH meter I'll do a proper test at 
different levels. How do you market your shampoo, if you don't mind me asking? I keep reading how vital a s…
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