Pharma

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Pharma
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  • If you were to live in Switzerland: CLICKElse: CLICK
    in Printer colour Comment by Pharma July 6
  • Buy pharma grade extracts ;) . You may however run into troubles because your product will no longer be a (by definition) inactive cosmetics product but a 'drug'.
  • @Abbot Who has an ultrasonic blender? Sure, it works wonders with lecithin... and yes, tweens at about 1/10 of lecithin can greatly increase success rate. I wonder if polyglycerol esters would work as neatly, too.
  • (Quote) 
LoL True that! But it's even more fun when they expect bad French and get hit with 'argot' (you may have to ask your husband what that means). :p Apart from emails and a ton of paperwork, I miss the time in France ;( and hence we s…
  • Depends on whom you're bribing.... :smiley: India isn't really known for regulations, let alone controlling these. I would guess (I don't know) that all you need is what you need for any business which doesn't involve anything special like sewing c…
  • Most microbes will be able to just barely grow in 10% brine. Fortunately, the faster growing ones are usually not spoilage germs but lactobacilli... however, there are a few exceptions such as Staphylococcus aureus. This being said, you have to add …
  • Niacinamide goes well together with nearly everything.What do you mean with LAA? It can be several things. Would you mind using full INCI or IUPAC names instead of abbreviations, at least the first time you mention them? And MAP may be suitable with…
  • (Quote) 
Have now seen this address being recommended in several places though I've never ordered there. The typical French homepage kept me from ordering... Dunno but French homepages make my eyes bleed and my brain hum. But shipment outsid…
  • If you haven't noticed: This is a cosmetics formulation forum ;) .Even if you develop a tattoo printer for eyebrows, this is unlikely the right place to find useful help.Why don't you just buy some printer cartridge refill bottles?
    in Printer colour Comment by Pharma July 4
  • Arbutin is acid stable but alkali sensitive MAP + arbutin may require pH adjustment because MAP is somewhat alkalineBv3?? What's that?Retinol and kojic acid are both fairly unstable but are not incompatibleRetinol + arbutin idemRetinol + b3?? What i…
  • @Graillotion Coenzyme Q10 ain't going to work because of your antioxidants which are strong enough to convert it to colourless ubiquinol (which is the antioxidant, not coenzyme Q10 as most believe ;) ).@Pattsi Again, the trick is not to add curcumin…
  • Add also benzoic acid as an antibacterial compliment to sorbic acid.Now, citric acid won't have a flavour but the taste of a slightly acidic product will be different to a pH neutral to slightly alkaline one.It has to be acidic or both these preserv…
  • Maybe it's supposed to help as co-factor by increasing wetability of certain (hydrophobic) particles?
  • Try to add lecithin to water and wait for several hours at room temperature so it can hydrate properly. However, the data (or rather lack thereof) you provided for your liquid lecithin aren't helping. Regarding preservation: I'd use a blend. Depends…
  • Forgot to mention: You could also use carrot or sea buckthorn CO2 extract or carrot oil because these are associated with orange colours or add a citrus/orange flavour to elicit a yellow/orange colour association in your customers. For different red…
  • Anti-histamine and anti-inflammatory is not a cosmetic, it's a drug and it's not a substantiated claim or require unphysiologically high concentrations.What polyphenols such as flavonoids do is some sort of 'tanning' (therefore, several flavonoids a…
  • Could you find quercetin? Also yellow, also nice for claims/disguise.BTW what I proposed was to use some turmeric extract to give customers the impression that your lotion should be yellow, not to actually colour it yellow. Because turmeric (or rath…
  • (Quote) 
Usually yes. There are certain differences regarding rheology but in mixtures you usually can substitute. No need for hunting, just CLICK ME.
  • If it's white, it's no longer quercetin. Depending on the position(-s) at which quercetin is esterified with caprylic acid, it will still be yellow, just better oil soluble and hence stain skin even better. Why or for what purpose do you need querce…
  • Caprylyl glycol is an antimicrobial (stronger against bacteria, hence the combo with sorbic acid) and a preservative booster. You could replace it with a similar multifunctional.Sorbic acid requires a low pH... just saying ;) .Optiphen plus isn't th…
  • Red seaweed extract is actually an INCI for what I would define as less purified carrageenan.The rice proteins might do something if mixed with carrageenan??? But honestly, I concur with the others, the LOI 'looks rather liquid'.
  • @chemicalmatt Boric acid and borax are, with a few exceptions, prohibited in the EU and several other European countries for several years now ;) . Any water soluble alkali will do instead of borax (though borax has a few perks other bases don't off…
  • I also like choline (though the fishy smell is quite pronounced :disappointed: )... weird enough that in some countries (Canada, if memory serves me right) it is still not allowed in cosmetics due to some old and false data..Proline is also nice but…
  • (Quote) 
Not necessarily Mexican aloe... that one might come with gusano de acíbar :smiley: !
  • Stability (physical and microbial) is an issue. Such creams for pharmaceutical preparations have a shelf life of 1 months if filled in tubes and are often stored in the fridge (for physical and microbiological reasons). They will not survive freeze-…
  • I don't know by heart, I would have to look it up in a pharmacopoeia (you may drop by at my work place any time)... or you go to a pharmacy near you and ask there ;) .With o/w creams of lower viscosity, direct measurement is accurate and feasible. S…
  • Personally, I'd add it to food ;) .It's a nice antioxidant with similar solubility than ferulic acid, partially water soluble, partially oil soluble, and well soluble in diols/glycols and hence 'better' than purely oil soluble tocopherol or purely w…
  • Water, oil, and beeswax sounds like traditional cold cream which is stabilised by the oil phase becoming hard enough to trap water droplets ;) .
  • If you can reflux, you don't need much catalyst (usually an acid or base), just a way to constantly removing water from the equation, How are you going to do that? Do you have something like a Dean-Stark apparatus? There is no point in telling you w…
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