Extra Strength Hair, Skin & Nails

Extra Strength Hair, Skin & Nails and 7 near-identical products are sold under 3 different brand names — a near-twin Formula Twins cluster.

Product	Brand
Extra Strength Hair, Skin & Nails	Nature's Bounty Optimal Solutions
Extra Strength Hair, Skin & Nails Argan Oil Infused	Nature's Bounty Optimal Solutions
Radiance Boost	Nutri-Rich
Extra Strength Hair, Skin & Nails	Nature's Bounty Optimal Solutions
Extra Strength Hair, Skin & Nails	Nature's Bounty Optimal Solutions
Extra Strength Hair, Skin & Nails	Nature's Bounty Optimal Solutions
Extra Strength Hair, Skin & Nails	Nature's Bounty Optimal Solutions
Hair Vitamins for Men	Puritan's Pride