Q&A: pH meters and the pH of lotions, including Lush’s Dream Cream

In the July Q&A, Kh asked, I just got a pH meter (from Lotioncrafter) (I think I even chased my cat around with it) and now I know the pH of everything in my house. But I was surprised to find that the toner and lotion I measured came out around 4.5 – anyway, I didn’t use...

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Q&A: Why do people use apple cider vinegar rinse after washing with alkaline products? Why not just make the shampoo bars with very low pH? (Tons of information about hair chemistry and shampoo bars…)

In the July Q&A post, I live in an area with very hard water, and I’ve heard that could cause a problem when using shampoo bars. I’ve also heard about apple cider vinegar rinse, which does not sound too pleasant to me. Would you shine more light on this? Does the vinegar rinse work because of...

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Hey $10 subscribers! The new e-zine – Surfactants: Making Foaming Facial Cleansers – is here! 

Every month I say the e-zine’ll be smaller, and every month I’m wrong. This month’s e-zine – Surfactants: Making Foaming Facial Cleansers – is 55 pages, 16,346 words, and 22 formulas long! I hope you love this topic as much as I do! I’ve created formulas for different skin types, and included tons of information so...

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Let’s formulate: Chamomile & aloe botanical summer time body butter (formula)

On Wednesday, we created the oil phase for this lovely, light, luxurious body butter, and yesterday, we created the water phase. Today, let’s put it all together and create something lovely and wonderful! CHAMOMILE & ALOE SUMMER TIME BODY BUTTER! HEATED WATER PHASE 32% distilled or reverse osmosis water 10% aloe vera liquid 10% witch...

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Welcome to Point of Interest: A science-y place for science-y people who like science

Since we have so many new members to our wonderful little group – hello, and welcome! – I thought I should write some kind of mission statement and code of conduct. This is a science-y place for science-y people who like science. This doesn’t mean you have to have a Ph.D in chemistry to read … Read more