Keratin is generally obtained by hooves, horns and feathers, grinding them and extracting the keratin—all of which is done after death or plucking. So keratin in a product doesn’t necessarily imply animal abuse my research did not turn up the expected websites against keratin, so it seems that keratin extraction is generally fine for animals because it doesn’t happen while they’re alive. Still, the process seems like there is a lot of room for animal exploitation there.
One company extracts keratin from sheep’s wool, which is certainly not harmful, and call it Functional Keratin. The company uses sheep in New Zealand and puts the keratin into skin products to restimulate collagen.
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