
HELP FORMULA_SHAMPOO BAR MUSHY TEXTURE/DOESN'T GET HARD
Good morning. I’ve been trying to make a shampoo bar for a while now; however, I haven’t perfected the formulation yet. Each batch always ends up with a mushy texture and doesn’t harden properly.
Here’s my basic formula for the first batch. I sometimes change the emollient, add extracts or just play with the formula in general. When I add a powdered ingredient or something to make the bar hard, I subtract that from my powdered surfactant and adjust the liquid surfactant accordingly to keep the ratio balanced.
 3% BTMS50
 5% coconut oil
 5% shea butter
 30% sodium cocoyl isethionate (SCI)
 20% cocamidopropyl betaine (CAPB)
 35% SLSa
 1% fragrance or essential oil
 0.5% Liquid Germall Plus
Is there something wrong with my ratios or my process? I usually divide it into four different phases:
 SCI Phase: CAPB, SCI (double boiler)
 Heat Phase: BTMS, coconut oil, shea (double boiler)
 Other Ingredients Phase: SLSa, sodium lactate
 Cool Down Phase: fragrance oil, Liquid Germall Plus
I’ve been trying to do this for almost a month now, and I can’t seem to see any progress. I also followed this basic formula from a book, so I don’t know exactly what I did wrong. Also, I would like to add, that I put my shampoo bar in the freezer (12 hrs) to get it hard, then unmold it after. However, it always ends up in that mushy texture. I also tried not doing this, and just letting it air dry, still same results.
Anyway, I live in a humid environment, and I don’t if this affects my formula.Thank you so much for your help in advance.
 This discussion was modified 1 week, 4 days ago by Ezra ORTIZ. Reason: add additional info
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