DAS

About

Username
DAS
Joined
Visits
3,371
Last Active
Roles
Member

Comments

  • If I had to make a bet my money would be on a combo of cheap quality materials. Although I suspect the main issue is the CDEA. Surely soy, sunflower, palm or anything but cocoamide. Those damn long chains are only holding together because Urea is wo…
  • No, you shouldn't add more, you should change fragrance/supplier. Depends on the product and storage, but at least 2 years. 
  • Well, for starters you are missing a key detail, what products will you produce and how many units. I take you will make small batches of small things like toners.  If so, that list seems OK, but for example, why do you need a centrifuge?. Will a 50…
    in New lab Comment by DAS September 20
  • What a shame there's people who will continue to work like this and practically scam customers. We should have some sort of blacklist.  This explains a little the cold war between freelance formulators and contract manufacturers (at least the serio…
  • Yes, that's normal. Hot water or a more hydrophilic co-surfactant will do the trick.  And no, it won't remain a gel since its not a gel, just the material clumping due to its partial affinity with water.
  • Nice topic. My evidence is observation. Double blind tests and consumers feedback. The most important thing I learned is pH should be balanced, although not just taking in consideration the skin, but how's applied, for how long and how often, and mo…
  • Now that I think about it my mother use to clean her cat's eyes with it. Perhaps it wasn't snake poison after all. Strange that a plant that has been consumed widely across the globe for centuries doesn't have further research, or claims in cosmetic…
    in Atopic dermatitis Comment by DAS July 23
  • Also it could be filth, mould, the buggers of a sick employee or a portal to other dimension. The thing is you shouldn't care. You got a bad batch from your supplier and you are holding the proof. Even if it's nothing the customers won't see it that…
  • Transportation is a lottery, but perhaps you could improve the packaging. Adding polystyrene beads or something like that it's the cheapest I can think of.
  • Very. You need to consider the worst case scenario. A truck on the road under the sun can easily heat up to 50°, even more. I'd consider tweaking the formula a bit. Far better now than after losing an account and your reputation.
  • Synergy could be another reason.
  • That budget would make sense if you were to make in-house chromatography, but I doubt that's the approach they have. It sounds nice, I'd love to have a space ship if I had tons of money to throw away, but non uniform bottles?? Come on!. As far as I …
    in Building a new lab Comment by DAS May 10
  • Yes, EC Regulation 1223/2009
  • @theoracle there are powder fragrances.
  • So what's the purpose of the mg in the formula?.  If the remove the methoxycinnamate I guess you could also remove the Cetiol. You can replace the mix with dimethicone, but you won't get the same performance by any chance. In fact dimethicone is j…
  • @Bill_Toge that's interesting. And regarding temperature?. In my experience fatty alcohols will decrease viscosity above 35°, even using 1% or less. 
  • I'd use it to stabilize the mix. Considering you have more than 10 oils it wouldn't be rare to see separation under different conditions. 
  • No. You will have to send it to Brookfield for maintenance, or a trusted local service. In the end sometimes is cheaper to buy a new one considering it's old and doesn't include spindles. 
  • It's all possible, it could be the spindle, the product, the method... sometimes is hard to interpret the data, that's why you will have to test it as much as possible and get as much data as you can. For example, do you move the spindle up and down…
  • I don't remember, but it was OK with regular filters. Now im analizing installing the exact softener Bill posted. As for chlorine, yes, it happens sometimes. I don't know what's the protocol for water treatment plants, maybe some sort of emergency …
  • Those are the inverted t right?. Those are used for high viscosity and thixotropic stuff. You need the right spindle for what you are measuring. You don't always get the error message. Check the manual, there should be a table or a range. Also it co…
  • You can go back to glass. In fact there's this idea to use the amazon service to exchange the bottles. All the major companies are working on it, so it will be the new thing.
  • No, just antioxidants. BHA/BHT most likely.
  • You could add carbon and fiber filters and you will see an improvement, but only with a reverse osmosis system you will remove most of it. Those are expensive but effective. In the meantime you can order distilled water from a local supplier. A truc…
  • http://www.academia.edu/29659624/HLB_system_Crodas_Time-Saving_Guide_to_Surfactant_Selection_Personal_Care_Edition_tHe_Innovation_you_can_build_on_tm
  • Also, even if you find a surfactant system that suits your needs you should be extra careful choosing fragrance and preservative.  Leaving those items to consumers choice is reckless, and even ethically shady for a vet. Fragrances will have allerge…
  • And you won't find it. The HLB system is made for surfactants with no charge. Those are anionic.  Also keep in mind HLB shall be used as a formulation guide, its not a flawless method.
  • Unless you have a vet helping you with the formula don't experiment on your dog. Their skin is far more complicated than human skin. What's mild for us might be poison to them. Search @Belassi 's topic about this.
  • It could be a good product if you sell it right. I had a similar product and I discontinued it not long ago. The issue is, as mentioned before, the cost. A "cosmetic" dish wash will be expensive, and if you don't market it right you will end up like…
  • True, might not be useful to consumers, but there are reasons why there are laws and regulations that we all must respect. Ask an allergist if a shorter INCI will help him do his work... I take a detailed list will be of importance to the doctor, no…
    in INCI list Comment by DAS January 11
Avatar

Howdy, Stranger!

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

30DaysToBecomeABetterCosmeticChemist_cover (1)