Regenium XY Shampoo

Is there anything to thickening shampoos that contain “regenium xy” and the like? Or is that just marketing? If they’re for real, how do they work?

Regenium XY is an ingredient in some thickening shampoos by L’Oreal. I haven’t seen anything about L’Oreal Elvive shampoo (also known as L’Oreal Vive) that states it regrows hair, so I’ll have to assume you’re talking strictly about hair thickening itself.

Hair thickeners just give the illusion of fuller hair and are pretty commonplace. Different thickeners exist in the form of shampoos like the one you asked about, and camouflaging agents like Toppik that are applied when the hair is dry. I have a feeling that the “Regenium XY” name itself is likely just branding to make it sound more amazing than other products for sale, but perhaps there’s more science to it that I don’t understand (I’m not a shampoo expert). This site might have some more useful info about it.

In general, some thickeners might work better than others and some people might not see any real benefit whatsoever, so you’ll have to try them out to see what your personal preference is. To learn how they work, I found a sites that explain it — understanding-hair-loss.net.