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What Ph should this shampoo have?
What Ph should this shampoo have? Ingredients: Colloidal Oatmeal Extract, Water (Aqua), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Glycol Distearate, Hydrolyzed Milk Protein, Prunus Amygdalus Dulcis (Sweet Almond) Seed Extract, PEG-7 Amodimethicone, Polyquaternium-22, Polyquaternium-39, PEG -150 Pentaerythrityl Tetrastearate, PPG-2 Hydroxyethyl Cocamide, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Laureth-4, Sodium Hydrolyzed Potato Starch Dodecenylsuccinate, Linoleamidopropyl PG-Dimonium Chloride Phosphate, Propylene Glycol, Citric Acid, Sodium Citrate, Hexylene Glycol, Sodium Hydroxide, Sodium Benzoate, Fragrance (Parfum)
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5 Replies
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@fotis83 Since you have Sodium benzoate, I’d say less than 5 (If you had SLES in your formula, you could even be close to 6 without much trouble).
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Now, I’d be very worried to have Sodium benzoate as a sole preservative, you’d need some other preservative to broaden its range of action.
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Yeah, under 5.0 and a more robust preservative (maybe add Potassium sorbate)?
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Thank you very much to everyone, yes at 5 I also said simply the ingredient Acrylates/C10-30 Alkyl Acrylate Crosspolymer will the formula be stable at 5 because we neutralize it 6.5 to 7 ph and we can with citric acid nabto go to 5 it will simply disappear its transparent right? and not the viscosity? I usually use Phenoxyethanol, Ethylhexylglycerin to be invited to a large ph range
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That is a pretty poor preservative system at any pH.
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