Showing results for ‘Urea’

    Forum Discussions

    172 results
  • Stabilizing urea with gluconolactone

    Hi guys! I read about stabilizing urea with gluconolactone. It was recommended to use it at a rate of 15% of urea. If I use 3% urea and try 0.45%…
  • What is wrong with this formulation?

    NitrosolEDTAcarbomerwhite oilsunflower seed oilIPMshea butterCetyl AlcoholStearic AcidEmulsion waxSilicone OilDimethiconeureaGlycolic AcidSalicylic AcidVit b3vit b5Lactic AcidZinc oxidesorbateGlycerinPhenoxyethanol
  • NEED HELP!

    What is wrong with this formulation? Nitrosol EDTA carbomer white oil sunflower seed oil IPM shea butter Cetyl Alcohol Stearic Acid Emulsion wax Silicone Oil Dimethicone urea Glycolic Acid Salicylic…
  • Precipitation and gel incompatibility salicylic acid serum

    Dear all, I am trying to formulate a salicylic acid serum. I have two problems : 1. Phase B upon mixing yields a clear solution, but once mixed with A1,…
  • Urea in shampoo

    Hi, I have asked this question in an old thread/topic, but had been advised to open new topic. So here is my questionStability of shampoo using Urea. I’m formulating shampoo…
  • UREA 46% in cosmetic formulas

    Hello, I wanted to incorporate urea for the first time in a moisturizing cream formula and the ones I found locally are not the 99% urea usually found in formulations,…
  • Liquid Germall Plus / Pregnancy

    If I am using Liquid Germall Plus as a preservative, should I be adding a ‘Not safe for use while pregnant’ warning to the labels because of the Diazolidinyl Urea…
  • Ointment

    Please help me with this issue ???? I m a beginner in formulation,and i have this questions I am trying to make an ointment And there are some issue with…
  • Shampoo separation problem

    Hi everyone, Please take a look at the image and the following formulation and give your expert opinion on why this separation happened. I made and used 3 100g samples…
  • Crystals in the SPF 50 Cream

    Hello fellow formulators, I hope this message finds you well. I’m a formulator currently working on an SPF 50 cream, and I’ve encountered a specific issue with the formulation. Here…
  • Stability Test Discoloration

    Hi, I have a moisturizer that goes from a pure white to an off white with a slight greenish/yellow tone to it after just 1 month. I plan on making…
  • EDTA gel viscosity problem

    Made Gel of PEG 400 50%, PEG 4000 25%, EDTA 15%, UREA 5%, H2O2-5%. After week it’s losses viscosity. Any guesses?? pH= 7.2 can adding ACID phoshate help? same also…
  • Azelaic acid 10% and urea 10%+

    Hi all, I am awaiting an initial meeting with a cosmetic manufacturer who I’m sure will answer this but I wondered if anyone on here can shed some light in…
  • Phenonip P4 vs. Germall Plus

    Which would be the “better” choice between the two, if only one could be chosen? I know the answer is not that simple, but I only formulate products at home…
  • diazolidinyl urea vs formalin

    1. What percentage of diazolidinyl urea would have the same anti bacterial effect as 75ppm formaldehyde from formalin, specially against Staphylococcus aureus? <div> 2. How much formaldehyde will be released…
  • Keratin straighent

    Hello, I have made two hair straightening formulas, in the first formula I have used methylene glycol for smoothness, surfactants and silicones… and in the second formula, I have used…
  • Keratin straightening

    Hello, I have made two hair straightening formulas, in the first formula I have used methylene glycol for smoothness, surfactants and silicones… and in the second formula, I have used…
  • Low pH Gel Cleanser

    Help please!Reverse engineer formula issues Info I have been told:- 12% Glycolic Acid- Clear, gel -pH 3.75 - Contains Cocamidopropyl Betaine, Sodium Methyl Cocoyl Taurate, Decyl Glucoside - Potassium Sorbate…
  • My dishwashing liquid get a little nontransparent at 5 centigrade

    Hello, I am trying to make dishwashing liquid, but I have a question. 1- I put the dishwashing liquid in the fridge at 5 degrees centigrade it turns a little…
  • FDA Urea limitations on cosmetic products???

    I was discussing urea in the context of cosmetics, and our memories led us to believe that possibly their was some regulations of the upper end of the Urea inclusion…
Viewing 1 - 20 of 172 results
Chemists Corner