Formulation types

kenny_kennedykenny_kennedy Member
edited January 16 in Formulating
Hi guys

Need some guidance please form the experts.
I’ve been research ‘natural’ deodorant stick formulations and keep coming across two types. I can’t tell what the differences between the two are, as in why you would choose to go with type 1 or type 2. 
The two mains types I keep coming across are:
1. oil base ingredients + dry absorbing ingredients + thickeners + actives + essential oils 
2. More water + glycol or glycol based.  For example water, glycerol, alcohol, stearic acid, glycerin, sodium hydroxide, Saccharomyces Ferment + essential oils
OR
Glycol, Aloe Barbadensis (Aloe Vera) Leaf Juice, Sodium Stearate, Saccharomyces Ferment, Glyceryl Laurate, Triethyl Citrate, Silica Cetyl Silylate, Glycerin, Salvia Officinalis (Sage) Leaf Extract, Aqua/Water/Eau 

Why you could choose one over the other, is it cost, time or quality?

Any help would be a great and set my mind at ease!

Thank you.


Comments

  • I would certainly choose the water based formula as I do not think I want to add oil on oil ending up like a greasy sleezball?? Also Triethyl citrate is a well known ingredient in deodorants, I believe it was the active that replaced Al ?
    Dr. Catherine Pratt
    (B.Sc with HONS I , Ph.D Analytical/Organic Chem and Microbiology), Cosmetic Chemistry IPCS)
  • PharmaPharma Member, Pharmacist
    I'd go with the triethyl citrate version. I'm currently trying one instead of aluminium and so far, it's the first one that works more or less. Before, I used 5 days aluminium and on week ends did detox (= nothing or "natural"), now with that triethyl citrate deo I go 5 days "natural" and 2 with aluminium and it's about the same.
    Had only disappointing experiences with oil, absorbent, nothing of anything except perfume ("French washing" as we call it), and high pH deodorants, they usually worked for just 1-2 days (remember, after a few days on aluminium, I can go without any deo for 1-2 days :smiley: ).
    Worth mentioning is that triethyl citrate is low pH and maintaining a low, bacteria hostile environment (the product I'm currently using is somewhat irritating my skin similar to higher % aluminium chlorohydrate but not as bad as aluminium chloride). Alone, it doesn't stop sweating but bacteria from producing *stink* and *reek*; that's where sage extract comes into play.
    It's not the only modern ingredient used to replace aluminium though I don't know how well the others work nor if it's as reliable as aluminium-based products...
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