Step 8 of 14 · Natural Bio Shampoo From Scratch
Test pH — target 5.0–5.5
Test pH — target 5.0–5.5 — step 8 of 14 in Natural Bio Shampoo From Scratch. Dip strip in mixture. Castile blends often start pH 8+. Add citric acid 0.1 g at a time, stir 2 min, retest. Stop when strip reads 5–5.5.
Free beauty & grooming tip: Test pH — target 5.0–5.5 (step 8 of 14 from "Natural Bio Shampoo From Scratch").
Dip strip in mixture. Castile blends often start pH 8+. Add citric acid 0.1 g at a time, stir 2 min, retest.
Stop when strip reads 5–5.5. One pinch is often enough.
You'll need
- pH in range
- Logged citric acid amount
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