Shampoo Formula

Good day,

I want to create my own hair shampoo is this what I have, what do you think?? 
Water (75%) 
(Detergent) Sodium lauroyl sarcosinate (18%) 
(Foam Booster) Cocamidopropyl Betaine (3.5%) 
(Thickeners) Sea Salt (0.5%) 
(Preservatives) Tea Tree Oil (2%) 
Other ingredients: Rosemary Oil (0.25%) 
Lavender Oil (0.25%) 

I’m not sure about the Tea tree oil as a preservative and I’m also not sure about Sea Salt as a thickener, what is your take?

Comments

  • I like the use of the Sarcosinate as it should provide a tight soap-lather.Tea tree Oil as preservative I am extremely skeptical it would pass USP 51:Sea salt may be okay but I have not used it.I would add a chelate such as Na2 EDTA for any heavy metals present from sea water.
  • BelassiBelassi Member, PCF student
    edited June 2017
    Tea tree oil at 2% is far too high. I make a tea tree shampoo and I use 0.2%. Actually with three different essential oils it MAY be sufficiently preserved but you  would need to test it. I advise adjusting the pH to 4.5 and adding 0.3% sodium benzoate to make sure. I would also add 1% herbal fragrance, the three essential oils combined will not be very attractive (been there, done that).

    Cosmetic Brand Creation. Concept to name to IMPI search to logo and brand registration. In-house graphic design inc. Pantone specs. Cosmetic label and box design & graphics.
  • em88em88 Member
    @Belassi, pH 4.5 isn't too risky considering the scalp and hair pH is 4.5-5.5? Just asking, don't get me wrong.
    As @DRBOB@VERDIENT.BIZ said, I'd add 0.1%-0.2% Na2 EDTA


  • BelassiBelassi Member, PCF student
    pH 4.5 is no problem at all for a shampoo or skin product.
    Cosmetic Brand Creation. Concept to name to IMPI search to logo and brand registration. In-house graphic design inc. Pantone specs. Cosmetic label and box design & graphics.
  • em88em88 Member
    Awesome! I just wanted to hear again this statement (I was kind of unsure)! Thanks!
  • MakingSkincareMakingSkincare Member, Professional formulator
    The active matter of your shampoo seems on the low side so you may want to increase the level of surfactants. Can I ask why you included salt in the formula?  Salt will not thicken this sulfate-free formula.  Do reduce the oil level as this lead to solubilisation issues and also depresses foam.  Also check you are complaint with IFRA with regard to your fragrance.  Do add a broad spectrum preservative and disodium EDTA as others have stated.

    Jane Barber
    www.makingskincare.com
    www.learncosmeticformulation.com (free online course)
    Formulation discussion forum (18,000 members): www.facebook.com/groups/makingskincare/
  • Thanks for the input, I will look re-look the formula and post an edited version
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