Sibech

About

Username
Sibech
Joined
Visits
1,062
Last Active
Roles
Member, Professional Chemist

Comments

  • (Quote) Whoop - I forgot to mention (or think about) the possibility of reaction mixtures in my "only one oate/eate part" (I blame the heat we're currently experiencing here :wink: ). I think suggested mixture of DHA and Oleate triglycerid…
  • Can you use it? yes in principle you can use it, however, those formulations are intended mostly as inspiration and guidance. As for what would you have to do to get it to market?Well, that depends on where you live. It is a sunscreen which is anyw…
  • The reason you cannot find it is probably because it is an invalid INCI name. First of all, if this was an actual INCI name, there would be no space between "tri" and "docosahexaenoate". In addition, there can only be one "o…
  • (Quote) Well, you don't have the entire formula yet, otherwise, you wouldn't need to adjust it right now at all. You really should listen to Pharma and Ngarayeva001 and post the formula (in its current state) with INCI names (and possibly tradename…
  • I’ve seen an “oil-free” moisturizer with squalane as one of the first ingredients. But oil can (as it does not have a regulatory definition in regard to cosmetics) defined in many ways, and is basically a meaningless claim. Are oils all lipids? Veg…
  • Yes, remember that when you are filling the container you are adding the propellant through the exit valve and under pressure the gasses which are used as propellants are liquid.
  • @janele Pentavitin is an isomerate of D-glucose mostly consists of glucose and fructose (Besides water).
  • @akuatajaThick is a very broad term and defining what you want to achieve might help you get some responses (Do you want to suspend something? is it just thickening? must it be a clear gel?)For a gel with only one thickener, I would go with the dehy…
  • @Peppas_I basically you package the formulation to a cannister, add the dip tube-cap with a casket & seal it, then add the propellants afterwards (pumping them into under pressure).
  • Not legally in the EU, no. but remember the category 1 compounds also need the additional criteria you mentioned in your first post.
  • Article 15 is not as such about restricted substances but is about the ban and exemptions to this ban of CMR chemicals (Carcinogenic, Mutagenic and toxic to Reproduction). Basically, it tells you that compounds that are classified as CMR compounds …
  • @chemicalmatt - Valid point - Isn't the psychedelic yellow of the vitamin Bs Riboflavin? Regarding the colour you will get from cyanocobalamin, it actually depends on the oxidation state of the cobalt atom. Pink is the natural state Co(III) & Y…
  • As for your question on buffer and pH, this might be useful even if it was for an injectable solution. a pH of 4.3 and an acetate buffer was used with the highest level of succes. https://jpharmsci.org/article/S0022-3549(15)34243-X/pdf Incompatibil…
  • @Doreen While it is only done in vitro, B12 worsened the pathogenic factors for acne patients, as the pathogenic strains produce a significantly higher amount of Porphyrins, of which B12 is basically giving them a shortcut. The porphyrins when excit…
  • @gunther - According to their patent (US6638497B2), the function of glycols in their strong quats are to reduce the melting point of the mixture, so as to reduce heating time and potential for thermal degradation of the quat.
  • It is a trend on the rise, but one where you really need to be careful as individual countries have vastly different regulations concerning CBD. It is an export jungle, to put it mildly. I'm curious though, is the main product type you have formulat…
  • @Bill_Toge Yes - I quite like the EmoGreen products as well, but even there I found a need to mix the L15 and L19 to get a closer approximation to D5 in terms of volatility/silicone-oil-feel. Specifically, I was doing a hair serum - and well, D5 alw…
  • In a word. No. In a few more words; You can get a very close approximation, but usually with a mixture of other ingredients (alkanes of various sort for instance) but they are much more expensive and you will likely never find a 1:1 substitute.
  • I don't know if Acudyne 1000 would work (I have not worked with it before) - My best suggestion is to try it, probably in a similar or slightly lower concentration as you would a non-aerosolized spray formulation.
  • Welcome to the forum. If you want it to give any texture you would have to add some hold-giving polymers (VP/VA for instance), otherwise, it would just be a matte-effect powder. A hair powder with texturizing effects sound a lot like something out o…
  • @Bill_Toge I completely agree, of course, it is impossible to say for certain as it is evaluated on a case-by-case basis. Having a solvent in a cream base makes no sense however and if someone were to report them their local competent authority I am…
  • (Quote) @Dynamin Strictly speaking they are not selling it as cosmetics, and since it's written as a chemical it does not fall under the cosmetic regulation but REACH and CLP (possibly others too) in the EU. As for the "But others are doing it,…
  • @Dynamin What would they have been sued for? You cannot sue a properly labelled solvent, which the end-user abused, can you? (I don't know, I am not an attorney nor am I based in the US).
  •  @dynamin Notice how they all write: Intended for use as a solvent only (or something to that effect), that is likely there in the hope it will keep them out of legal issues when using DMSO. While standing with what I previously wrote, another optio…
  • The answer is more or less nothing. There is a reason most things which need systemic access are formulated to be injected or ingested. First of all different chemicals can function as a penetration enhancer, but they may not increase the penetrati…
  • @ngarayeva001 It (Germall Powder) is banned in products for children under 3 y.o. (except shower gel and shampoo-type rinse-off products), lip/oral products and leave-on products used on a large part of the body (eg body lotion). The limitation is b…
  • @MaisR Contact givaudan to hear who your local distributor is for their Active Beauty portfolio. I don’t know if it is available from resellers/repackages for hobby use.
  • @smok Different Chemists uses math to different degrees. If you were to find a physical chemist, a quantum chemist, an analytical chemist or computational chemist, you would find some chemists who know a great deal of math. And while these subjects…
  • Givaudan has a Cosmos/Ecocert certified polymer blend called Easyliance 2.0 which also provides the same effect.
  • @Jake99 No Chemically clindamycin is not likely to react with hydroquinone as is.
Avatar

Latest Q&A session

Forum Instructions

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

30DaysToBecomeABetterCosmeticChemist_cover (1)