i use 5 diferent oils every wash 2x a week i never measure just shake shake shake i use more when i feel the need and add jojoba or e when i need and even tho i use alot (i do 2 gallns 1 i pour over the other i soak the length in so use 2x the 1 gallon recipe) and still 2 oz last months and months and months i dunno how many 4 i guess
they are not expensive wghen u consujise how long they last
but are u closing the caps tight after use? not soring in the sun? thry do evaporate
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My new book Ban The Taboo Vol 1