10 bestHair Serumsof December 2025
112M consumers helped this year.
30% off
1

Botanic Hearth Argan Hair Oil for Adult Hydration, Nourishing, Strengthening, Curly, Frizzy, Dry, Damaged Hair, Non-GMO Verified, 4 fl oz, 1 Count
Botanic Hearth

9.9
10% off
2

Kérastase Nutritive, 8H Magic Night Serum, Nourishing Hair Serum with Niacinamide, Overnight Leave-In Treatment for Dry Hair, Lightweight and Non-Greasy, 90 ml
KERASTASE

9.8
10% off
3

Kérastase Genesis Hair Serum, Hair Thickening Sérum, Nourishing & Fortifying Leave-In Sérum, For Weakened Hair, With Ginger Root & Edelweiss Flower, 90 ml
KERASTASE

9.6
4

Olaplex No. 7 Bond Oil, 30 ml.
Olaplex

9.3
5% off
5

Moroccanoil Treatment Hair Oil, 0.85 oz
Moroccanoil

9.0
OtherUp to 20% off
6

L'Oreal Paris Dream lengths Sleek Frizz Eraser Serum with Keratin and Castor Oil, 100 Milliliters
L’Oréal Paris

8.7
20% off
7

L'Oreal Professionnel Hair Serum, Serioxyl Advanced Serum, Thickening Serum Oil, For All Scalp Types, Scalp Relief,For Hair In Need of Volume and Texture, Serie Expert,Professional, 90 ML
L'OREAL PROFESSIONNEL PARIS

8.4
8

Kérastase Nutritive, Hydrating Scalp Serum for Dry Hair, With Niacinamide and Vitamins, Moisturising and Revitalising, Fast Absorbing and Non Greasy, Nutri-Supplement, 90 ml
KERASTASE

8.1
24% off
9

Nioxin Ultimate Power Serum, Leave-In Hair Treatment with Caffeine, Lauric Acid, Niacinamide And Sandalore, Prevent Hair Damage, 2.3 oz
Nioxin

7.8
5% off
10

Garnier Fructis Hair Filler + Vitamin C Strength Repair Sulfate-Free Serum, for Weak Damaged Hair, up to 4X Less Breakage & 79% More Strength, 111ml
Garnier

7.6
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