13/07/2026
Lanolin, petroleum or synthetic β ever wondered what's actually moisturising your skin? Here's the science. π
All three are 'occlusives': they lock in hydration by slowing trans-epidermal water loss β the moisture that naturally evaporates from your skin. On that, they all deliver. The real difference is HOW.
π’οΈ Petrolatum (petroleum jelly) is highly effective but completely inert β it forms a protective seal that sits on the surface.
π§ͺ Silicones leave a smooth, breathable film, but it's a surface effect too.
π Lanolin is the outlier. Drawn from the wool of Australian Merino sheep, it's chemically a close cousin of the lipids your own skin produces. That kinship means it doesn't just sit on top β it blends into your barrier, softens deeply, and can hold around twice its weight in water, much the way healthy skin does.
None of these is 'bad'. But only one behaves like it belongs on your skin β and that's why, nearly 30 years on, lanolin is still at the heart of our Australian Creams range. π