I am a new formulator myself and trying to learn from this forum.
Here’s something I put together; please correct me if wrong.
Distilled water: 85.2%
Denat Alcohol (Organic solvent): 6%
Propylene Glycol (VOC content): 6%
Solids content: 5.8%
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Magnesium Sulphate or Epsom Salt
Isoceteth-20: Propylene Glycol ether and is a mild emulsifier, emollient and surfactant.
Citric Acid: to adjust the pH, probably.
PVP: petroleum derivate; forms a film on hair to hold up the shape.(toxic material)
Sorbitol: adding elasticity to the hair, increasing its tensile strength and also prevents your hair care products from drying out.)
Sodium Benzoate: powerful preservative
Diazolidinyl Urea: conditions hair
Fragrance / Parfum
Percentages given above are as per SDS, also pH = 3
All %s are adding up to be 103%?
Which % is extra here?
Solids content, we can adjust by hit and trial, by making small batches and testing out as @fareloz said.