27/07/2026
One thing the lab has taught me over and over again is patience.
Especially when it comes to adjusting pH.
I was working on a dark spot moisturizer containing niacinamide, tranexamic acid, N-acetyl glucosamine and alpha arbutin, and everything was looking good. The cream was smooth, the texture was beautiful, and I was almost done.
Then came the pH adjustment.
My pH was higher than my target at 6.4, so I started adjusting.
The first adjustment didn't seem like enough, so I added more.
And that was where the lesson came in…
I overshot.
Instead of gradually moving towards my target which is pH 5.2- 5.5, I pushed the formulation too far and my pH dropped lower than I wanted at pH 4.2
At that moment, it would have been easy to panic, but this is exactly what formulation teaches you: don't react emotionally, observe and correct.
I had to carefully bring it back up using L-arginine, adding small amounts, mixing properly, and checking again.
No rushing.
Because if I had continued adding without patience, I could have ended up moving the pH back and forth, affecting the balance of the formula.
This is something people don't always see when they look at finished skincare products.
They see the beautiful jar, the smooth texture, the claims on the label…
But behind that product are moments of testing, adjusting, learning, and sometimes making mistakes.
The lab has taught me that formulation is not just about knowing ingredients.
It is about understanding that every ingredient has its own behaviour and every adjustment needs time.
A rushed formulator will keep fighting the formula.
A patient formulator learns to work with it.
Today's lesson: small adjustments. Proper mixing. Give your formula time to respond.
Because in formulation, impatience can make you overshoot.
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