Swanson Keratin (from Tibetan Wool) - Natural Supplement Promoting…
Amazon.comPosted last month
Cost per servingTypical
$0.16/ serving
240 servings · ~$4.71/mo · 240-day supply
You pay
Price checked 4 hours ago$37.71
direct from Amazon.com
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About the typical Keratin cost-per-dose.
🔬 Studied dose — the commonly-studied Keratin dose is 500 mg/day. You'd take ~10.0 servings/day to reach it — about $1.57/day at this price.The one small manufacturer-funded Cynatine HNS trial used 500 mg/day — as part of a vitamin/mineral blend, so any effect can’t be pinned on keratin alone.
Prices & availability are accurate as of the last check and may change — always confirm the live price on Amazon.com before buying.
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Lead with cost-per-dose, not vibes.