

DRBOB@VERDIENT.BIZ
Forum Replies Created
-
try encapsulation perhaps cyclodextrin
-
think the free stearic acid will help to lower ph but both propanediol and glycerin are likely at 65% causing the sweat.
-
a sonicator should also work if you warm to reduce viscosity and leave in overnight.
-
DRBOB@VERDIENT.BIZ
MemberMarch 7, 2017 at 4:38 pm in reply to: The first formula I ever made was………First formula was a soap/syndet Bar using 70/30 Tallow/coconut oil soap with sodium tallow n-methyl taurate as lime soap dispersant.problems with cracking in soap dish made things interesting.Model similar to emulsion breaking as it needed a binding agent due to relative solubilities in water of STMT and soap.
-
PH is relevant in all cases where water is present even at 1-5% wt/wt
-
sounds like you need to raise oil phase:seems too low for w/o emulsion.
-
Try Tom Smith at Napp Technologies
-
DRBOB@VERDIENT.BIZ
MemberFebruary 27, 2017 at 3:32 pm in reply to: What is the smallest surfactant molecule?you can run and plot surface tension as a function of SAA concentration (we used DN tensiometer with ring method) and determine critical micelle concentration (CMC). Area/molecule can then be calculated.
-
DRBOB@VERDIENT.BIZ
MemberFebruary 27, 2017 at 2:58 pm in reply to: Seeking Chemist for Antioxidant Mistshould not be difficult formulating:problem however spray contact with eyes may cause concerns as:even water can sting and/or cause mild conjunctiva effects(redness) in some people.
-
water not listed but coming in through extracts so does need a preservative::naturals likely to discolor on aging so edta may help but amine functional extracts(glucosamine) WILL REACT VIA mallard reaction leading to discoloration
-
DRBOB@VERDIENT.BIZ
MemberFebruary 25, 2017 at 4:48 pm in reply to: Seeking Chemist for Antioxidant MistWE do considerable work with antioxidants but need more info.Why a spray and what are you using for spray-drying time etc??also can have 1-2K units made
-
DRBOB@VERDIENT.BIZ
MemberFebruary 24, 2017 at 12:30 am in reply to: What preservative for syndet bar?Cute, but you neglected to add preservative
-
DRBOB@VERDIENT.BIZ
MemberFebruary 22, 2017 at 4:36 pm in reply to: What preservative for syndet bar?Yes I have been here awhile:sounds like you also.Remember age is only a number.
-
DRBOB@VERDIENT.BIZ
MemberFebruary 22, 2017 at 3:06 pm in reply to: What preservative for syndet bar?I was directly involved in Dove at Lever together with a myriad of syndet/soap syndet bars.The use of 80/20 Tallow/coconut soap at 10-15% will reduce slop(overnight wt loss) and also makes Dove Ploddable.Stearic aill reduce PH to 7.Adjust final moisture to about 5% and an antimicrobial PRESERVATIVE is not needed but ADD antioxidant such as BHT.Hope this helps Dr Bob
-
DMDMH is a formaldehyde re leaser but good preservative
-
Use Baby shampoo technology for medium Lather and viscosity. mild to eyes and skin;easy rinsing.May need another variant for hair conditioning but once shampoo base is developed that should be easy.
-
lower the jojoba oil and replace with sweet almond oil-jojoba is mainly esters and most heavy
-
DRBOB@VERDIENT.BIZ
MemberFebruary 20, 2017 at 3:56 pm in reply to: How can I get crystal clear transparent soap?remove sodium stearate and use only alkanolamine soaps;also systematically raise glycerine for clarity
-
DRBOB@VERDIENT.BIZ
MemberFebruary 15, 2017 at 10:00 pm in reply to: Excess Sodium Chloride in liquid wash formulations?best to do a salt curve to determine minimum and maximum viscosity
-
DRBOB@VERDIENT.BIZ
MemberFebruary 9, 2017 at 10:11 pm in reply to: Looking for contract chemist to formulate novel skin productWE love projects outside the Box so send inquiry to verdient.biz or NDA to drbob@verdient.biz if interested-good luck Bob
-
do a draw down on a glass slide and look at films under microscope
-
DRBOB@VERDIENT.BIZ
MemberFebruary 9, 2017 at 5:42 pm in reply to: Simple Facial Mist/Toner (preservative question)Suggest Geoguard Ultra (Lonza) a mixture of gluconolactone and Na benzoate if your PH is about 5-5.5.It is also a good buffer and Eccocert approved-1% wt/wt should do it for challenge test
-
DRBOB@VERDIENT.BIZ
MemberJanuary 24, 2017 at 4:27 pm in reply to: Need formulating services? Here are some contactsVERDI ENT. INC Custom Formulation and Applied research Cosmetics OTC. Skin-Hair-Sun Care.Complete services from concept through formulation-packaging-claims support—scale up (small runs) for market Research etc.
Society of Cosmetics ( Emeritus).Visit us on http://www.verdient.biz -
DRBOB@VERDIENT.BIZ
MemberJanuary 21, 2017 at 4:01 pm in reply to: Need formulating services? Here are some contactsHELLO I am Dr Bob and have more than fifty years in the Cosmetic/Personal Care Industry.Our company is Verdi Ent. INC. verdient.biz:We do custom formulation and applied research in Cosmetics OTC from conception through manufacture of small runs with affiliate to marketplace.When finished you own it:patent preparations for provisional.Cheers Bob
-
Thanks for the welcome and will be looking forward to interaction. Bob