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Best deal: $3.45 per fluid ounce (79.1% below the median) — MEDITHERAPY Retinal Skin Booster Serum | Retinaldehyde, Niacinamide...

Price range: $3.45 – $728.99 per fluid ounce across 48 offers. Median sits at $16.53.

Top brands showing: Good Molecules, Medicube Pdrn, La Roche.

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d'alba Piedmont Italian White Truffle First Spray Serum (3.38 fl oz)

d'alba Piedmont Italian White Truffle First Spray Serum (3.38 fl oz)

(as of 08/27/2026 13:51 EST)

$4.80 / fluid ounce
Total: $16.24
Prime: ❌
COSRX Snail Mucin 96% Repairing Serum for Sooothing & Hydrating 3.38 oz.

COSRX Snail Mucin 96% Repairing Serum for Sooothing & Hydrating 3.38 oz.

(as of 08/27/2026 13:51 EST)

$5.47 / fluid ounce
Total: $18.50
Prime: ❌
Good Molecules Hyaluronic Acid Serum for Face, Hydrating Serum, 1 fl oz

Good Molecules Hyaluronic Acid Serum for Face, Hydrating Serum, 1 fl oz

(as of 08/27/2026 13:51 EST)

$5.97 / fluid ounce
Total: $5.97
Prime: ❌
Good Molecules Niacinamide Serum 10%, Pore & Texture Serum, 1 fl oz

Good Molecules Niacinamide Serum 10%, Pore & Texture Serum, 1 fl oz

(as of 08/27/2026 13:51 EST)

$5.97 / fluid ounce
Total: $5.97
Prime: ❌
The Ordinary Niacinamide 10% + Zinc 1%, Smoothing Serum for Blemish-Prone Skin, 1 Fl Oz

The Ordinary Niacinamide 10% + Zinc 1%, Smoothing Serum for Blemish-Prone Skin, 1 Fl Oz

(as of 08/27/2026 13:51 EST)

$6.00 / fluid ounce
Total: $6.00
Prime: ✅
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