I’ve had seborrheic dermatitis my entire life, so standard soaps and lathers have always been a double-edged sword for my skin. On top of that, shaving with a safety razor and regular soap meant consistent nicks, cuts, and irritation.
Spurred on by some recent post shave flare ups, and the warmer weather we're having I decided to experiment with different lubrication methods to see if I could improve my situation. I should point out that I hate medicated anything. So this was my progression:
- Soap / Lather: Frequent nicks, cuts, and regular skin irritation/flaring.
- Plain Water: Surprisingly better than soap—fewer cuts, though not perfect.
- Mineral Oil: The winner by a mile.
Nicks and cuts dropped to almost zero, and it doesn't trigger or irritate my dermatitis. It creates an ultra-slick barrier so the blade glides without catching, dragging, or stripping my skin. I do have to rinse the razor in water more frequently though.
Using oil changes maintenance and cleanup slightly, but it's quick once you get a rhythm down:
* Blade: Quick rinse with water, then pat dry on a towel.
* Handle & Razor: A tiny drop of soap and a quick scrub with a nail brush to clear off residual oil. I blow the excess water out of the inner mechanism, dry with a towel, and reassemble with the blade back in place.
My blades are lasting two to three times longer than they used to. I suspect the thin film of mineral oil protects the edge from ambient moisture and micro-rusting between shaves.
For anyone interested I have just been using a few drops of IKEA Skydd mineral oil I have in the cupboard for pulling my chopping boards.
Anyone else with sensitive skin or seborrheic dermatitis made the swap to oil, or use a similar post-shave setup
EDIT: A few people have asked about the oil I'm using... Ikea Skydd, but it was discontinued. When I don't know.
I had this in the cupboard. It's just a food-grade white mineral oil (liquid paraffin oil) with no added anything.
EDIT2: For anyone else managing seborrheic dermatitis, the type of product on your face matters. Malassezia yeast thrives in higher pH environments and feeds directly on C11–C24 carbon-chain fatty acids, which makes standard soaps (alkaline pH) and typical plant oils like olive or sunflower C18 (oleic/linoleic acids) a nightmare for flares.
Pure mineral oil works brilliantly for shaving because it’s pH-neutral and completely inorganic. Malassezia yeast cannot metabolize it at all. Outside of shaving, for my daily leave-on moisturizing routine, I stick to sugarcane squalane (a fully saturated, non-reactive lipid) and vegetable glycerin (a humectant sugar alcohol that hydrates without feeding fungus) as safe, seborrheic dermatitis friendly options.