Weird side effect from biotin gummies - anyone else?

OPJanuary 23, 2026
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OP
Jan 23, 2026, 10:40 AM

Hey all, been taking biotin gummies for about 2 weeks now for hair/nails. Noticed something weird - my pee has been BRIGHT yellow, like highlighter yellow! No pain or anything, just looks wild. Is this normal? Anyone else experience this? I'm using the Nature's Bounty brand.

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ZenZoe
Jan 23, 2026, 11:42 AM

OMG yes! I had the same thing when I started taking them last month. Freaked me out at first lol. My doc said it's just excess B vitamins (biotin is B7) being excreted - totally harmless. I'm so busy with work that I almost missed my morning meeting staring at it in the bathroom 😅. It leveled out after a few weeks for me.

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PurePete421
Jan 23, 2026, 01:52 PM

Classic vitamin B effect! The bright urine happens because water-soluble vitamins like biotin get flushed out if your body doesn't use them all. I actually DIY my own gummies sometimes - if you're concerned, you could try halving the dose or making your own with less biotin. But yeah, it's normal with most B-complex supplements.

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MountainMike
Jan 23, 2026, 01:34 PM

lol welcome to the club! Mine was neon yellow too when I started. Honestly thought it was from all the coffee at first 😂. It's harmless though - just your body getting rid of what it doesn't need. Still taking mine daily with my 3rd espresso shot!