Italic: looking for
Available humectants (0-2%)
- Glycerin, veg (simple humectant)
- 1,3-propanediol (simple humectant) less sticky than glycerin
Propylene glycol (simple humectant)petroleumSodium PCA (humectant)expensive
Available humectants / thickening gels / film formers (?%)
HEC (thickener, film forming humectant)dries stiff and crunchy – needs humectants, sticky?Carrageenan (thickener, film forming humectant, conditioner)difficult, might leave flakes?Xanthan (thickener, film forming humectant) link2difficult, might leave flakes?Guar gum (thickener, film forming humectant) link2difficult, might leave flakes?- Panthenol?
- Sorbitol?
- PVP/VA copolymer (film forming, provides hold, resists absorption of water in high humidity) could work in leave-in conditioner at 1%? petroleum :( wet look :( buildup?
- PVA on its own? Less substantive, can’t find cosmetics quality
- Arginine (emollient, humectant, fixative at 5-8%) might help treat eczema, psoriasis,
make sure it’s free base not HClmaybe HCl is better, no need for extra acid - Sodium carbomer (film forming, thickener) buildup? needs to be neutralised
Hydroxypropyl Chitosan (cationic, film forming, improves detangling)expensivePolyquaternium-11 (film forming, conditioning)might cause build up, tacky?- Hydrolysed proteins, particularly low weight ones
- Hydrolysed silk
- Hydrolysed lupin seed – expensive
- Hydrolysed rice
Available cationic emulsifiers / conditioning agents (0-4% active)
- BTMS-25 (surfactant, emulsifier, thickener, improves combing) link2 high HLB~15
- BTMS-50 (less thickening)
- Arachidyl/behenylbetainaatesylate and arachidyl/behenylalcohol
- Cetrimonium chloride (surfactant, conditioner, preservative) max 0.83% in leave-in
- Behentrimonium chloride (surfactant, conditioner) less greasy than BTMS, HLB~12 max 3% in leave-in
- Distearoylethyl Dimonium Chloride (and) Cetearyl Alcohol (surfactant, conditioner)
Guar Hydroxypropyl Trimonium Chloride (conditioner, detangler)makes hair sticky- Stearamidopropyl Dimethylamine (SPDMA; cationic when neutralised, surfactant, conditioner, improves volume) specifically used in silicone free formulations. Removes build-up of ammonium, proteins, cations and other compounds on the hair
Available nonionic emulsifiers (0-4% active)
- Ceteareth 20 (surfactant, emulsifier, thickener)
- Decyl glucose (surfactant, emulsifier) link2
Coco glucoside (surfactant, emulsifier, conditioner) link2– more of a detergent- Cetearyl glucoside (emulsifier) duur, high HLB, better emulsifier
Sucrose cocoate (co-surfactant, conditioner)doesn’t work in acidic pHPEG-200 Hydrogenated Glyceryl Palmate, PEG-7 Glyceryl Cocoate (surfactant, emulsifier, thickener, conditioner)petroleum- Glyceryl oleate (co-surfactant, emulsifier, emollient, improves combing) link2 <1.5% HLB~4
PEG-7 glyceryl cocoate (surfactant, emulsifier, emollient)a bit sticky? petroleumOlivem 1000MB (surfactant, emulsifier, conditioner) – link2can be hard to work withPolyglyceryl-3 Polyricinoleate (emulsifier, emollient, non-greasy)w/o, difficult- Polysorbate 80 / Tween 80 (surfactant, emulsifier) – HLB~15
Available amphoteric emulsifiers
- Cocamidopropyl betaine – cationic below pH~5.5
Available fatty alcohols and other LGN promotors (1-7%)
These will weigh down hair and decrease slip
- Cetyl alcohol (emollient, non-gelling thickener) link2 RHLB~15.5
- Cetearyl alcohol (emollient, non-gelling thickener) more draggy than cetyl? RHLB~15.5
- Behenyl alcohol – thickest, but highest drag of these three?
- Glyceryl stearate SE (anionic co-emulsifier, emollient) – HLB~6
Available emollients (1-2%)
- Dicaprylyl carbonate (non-greasy, non-oily)
Isododecanenot CG- Coco-Caprylate (does not build up in hair, non-greasy, non-oily) link2, RHLB~9.3
- Isoamyl Laurate, Isoamyl Cocoate (improves wet combing, degreasing effect for oils, long shelf life), RHLB~11
C12-15 alkyl benzoate () link2the oiliest option, and least sustainable, RHLB~12- Hydrogenated Ethylhexyl Olivate (and) Hydrogenated Olive Oil Unsaponifiables
Squalane (emollient, non-greasy light oil)expensiveStearic Acid (emollient, thickener)too waxy- Isoamyl laurate
- Lauryl laurate
Preservatives (up to 1%)
- Cosguard/Geogard (<1%) link2
- Rokonsal (<1%)
Versatil TBG (1%)needs solubiliser & something against mouldPhenoxyethanol (1%)petroleum- Vit E tocopherol
pH adjusters
- Lactic acid (humectant) should be used up to 5% or up to 2.5% pH>5 (EU)
- Citric acid link2 up to 5%?
- Malic acid up to 2.1%, exfoliates hair at low pH?
- Tartaric acid
Glycolic acidexfoliates hair at low pH- Ascorbic acid (antioxidant) link2 up to 1%?
- Phosphoric acid – can be skin irritating at high concentration
- Just use HCl