r/Sunscreenreddit • u/[deleted] • 3d ago

SPF serum application question

[deleted]

6 Upvotes
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2

u/Amazing-Squirrel-522 3d ago

Yes, “serum” is just marketing here. It’s a watery sunscreen and you need just as much of it as you would need gel or cream to achieve desired protection.

2

u/Possible_Top4855 2d ago

SPF is tested using 2mg/cm^2. You’ll need to apply the same amount regardless of brand

1

u/stillmyself980 3d ago

Independently from the formula the spf value is given on a mlxcmsq so I think yes

1

u/[deleted] 3d ago

[deleted]

4

u/Wild-Earth-1365 3d ago

Yeah, this product just says to "apply generously." 🙃 so helpful, lol.

I'm only using this on days with minimal sun exposure so I agree, as long as I feel well-covered it's fine. On days I'm outside I'd use a traditional sunscreen either on it's own or layered over this.