- Brazilian researchers found that extract from used brewing hops more than tripled a sunscreen’s measured SPF in lab tests, jumping from about 54 to 178 when mixed with water.
- Discarded hop material from a technique called dry-hopping retains an estimated 85% of the plant’s beneficial compounds, and was the only source to contain a xanthohumol-related compound linked to antioxidant and anti-inflammatory properties.
- Hop extracts boosted UVB protection significantly but did not improve UVA protection, meaning they work as a helper ingredient rather than a replacement for standard UV filters.
- All results came from lab testing on plastic plates, not human skin, and the researchers say further studies are needed before this approach could reach consumers.
the fraction of solar radiation blocked by something with a given spf s is 1-¹⁄ₛ. so spf 54 blocks 98.15% and 178 blocks 99.44%.
i don’t know if anyone needs this unless their job involves 16 hour days working outside in the nude…
Australia and New Zealand need it. UV index reguarly hits 13 in summer. You feel your skin prickel just standing in it for a couple of minutes.
I think i saw it on lemmy a couple of weeks back. A dermatologist convention in Hawaii. The dermatologists were enjoying the sun in full bodysuits, im betting they definatly think this is a good idea.
I think it’s the source of the sun blocking, it’s another alternative for people with allergies.
that’s true.