The home of SwiftCraftyMonkey Formulating Inc.! Join Susan as she obsesses about cosmetic chemistry and other things (some possibly related to monkeys). Often strange, occasionally useful, and always worth a stop as a point of interest on your journey through the Intertron.
What exactly is pH and why do we care when it comes to skin care products? pH is a measure of acidity or alkalinity. If you see a pH of 0 to 6.9, this means the thing is acidic. The closer to 0 a thing is, the more acidic it is. A pH of 7...
I’ve had quite a few e-mails and comments asking will 20% alcohol preserve a lotion recipe? I’ve seen people stating they use somewhere between 15% and 60% alcohol to preserve oil in water lotions. (The FDA considers products with 62% as being anti-bacterial, according to this post.) My personal opinion – I don’t think I...
Sebum can be our friend when it is protecting our skin from infection or fungi, protecting from friction, and reducing TEWL, but it can be our enemy when it’s causing us shiny skin and acne pustules! As you can see from this picture, sebaceous glands are located in the hair follicles of our body. The...
“Trans-epidermal water loss (or TEWL) is defined as a measurement of the quantity of water that passes from inside a body through the epidermal layer to the surrounding atmosphere via diffusion and evaporation processes.” (Wikipedia) This is a continuous process over which we have little control. It can increase due to disruption to the skin...
I see suggestions all the time that we really don’t need a preservative in products we might be using ourselves, and I find that strange, as if using a microbe-free product should be a privilege we reserve for other people! (And a bit hypocritical, if you believe there’s something inherently bad about using preservatives. You...