Formulating for dry skin: What is dry skin?

What does it mean to have dry skin? What might be causing it? What ingredients could you use in your products to help with this issue? Let’s take a look at these questions before we enjoy a few days of formulating for this skin type! What does it mean to have dry skin? (Original post from...

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Chemistry of our skin: Aquaglyceroporins

Aquaglyceroporins are “membrane proteins that form water channels over cell membranes. They faciliate transport of water and solutes like glycerol or urea.” (This document, p. 78) In other words, aquaporins regulate the water flux in our skin (specifically in our epidermis, or outer layer of our skin). They are embedded in our cell membranes to help...

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Surfactants: What causes skin tightness after washing?

We all know the feeling – our skin feels tight and smooth after cleansing – but this isn’t a good thing. Skin tightness is associated with a marked decrease in the water content of our stratum corneum, and can be the first sign that repeated use of this product could lead to scaling, flaking, and...

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Formulating for your skin type: Sugar scrub for dry skin

Dry skin has some difficulty removing the top layer of cells through desquamation, leaving a white or grey look to the skin from those cells that refuse to move! We can help them along by creating a lovely occlusive, moisturizing, and exfoliating sugar scrub we can use in the shower or tub. Because we’re using...

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Formulating anhydrous scrub bars for different skin types

I love love love scrub bars for my body and my feet. Like sugar scrubs, they offer moisturizing by trapping in water from your shower or bath after exfoliating all that non-desquamated skin from your stratum corneum. (Okay, I don’t really say this in real life. I usually say, “Pretty” or “Nice”!) So how can...

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