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Ole Henriksen Truth Serum Collagen Booster: Which Size Is the Best Value?

Sold in three sizes with a big spread — the 1oz bottle (on sale) is nearly 4x cheaper per ounce than the tiny 0.25oz.

Category
Serum
Sizes on Amazon
3
Best value
1 fl oz
SizePricePrice / oz
0.25 fl oz$37.99$151.96/ozShop this size →
0.5 fl oz$28.99$57.98/ozShop this size →
1 fl oz$40.06$40.06/ozBest ValueShop this size →

The best-value size saves about 74% per oz compared to the priciest size.

Prices and stock change on Amazon constantly, and we don't control them — the numbers above were checked directly against live listings in September 2026. Always confirm the current price before you buy; the size math (price per oz) is the durable part, not the exact dollar figures.

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