Hi from Greece,
I read posts here (I thoroughly understand the way of expression and thinking from @Graillotion and @Pharma ) after extensive reading of material (scientific and not so much) regarding cosmetic formulations for the past six months. I come from a high educational background but of a theoretical way of thinking. This is a whole new world you are part of that has amazed me. Eventually I eliminated so much material and so many kinds of products that I used to crave throughout my non-knowledgeable, ignorant years. Right now in my life I am confident with just a few basics: toothpaste, mouthwash, salicylic acid face cleanser, body wash, shampoo, hair-mask, leave-in conditioner, shaving foam, lip balm, madecassol cream, retinol at night and spf cream during the day. I became intensely attracted to creating my own leave-in hair conditioner and pre-shampoo hair balm with BTMS 50. For preservation I bought NipaGuard (Inci: Sorbitan Caprylate, Propanediol, Benzoic Acid) but my instict tells me it is not the choice I should stick to. Which one do you advise me to choose?