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Sephora customers often prefer the following products when searching for Hair Serums.

Browse the top-ranked list of Hair Serums below along with associated reviews and opinions.

Size 4 oz · ITEM 1807460
COLOR: Glassa [ 4 more colors ]
exclusive· limited edition· buzzworthy· online only
$30.00

It worked wonders!...Long-Lasting Brass-Banishing!...It made my hair super soft, like my natural color but better, with a nice hint of sheen to it.It also seemed to smooth and help my hair curl naturally....I think it's 100% worth it though, my hair actually feels healthier than it did before.
What it is:
An easy-to-use, color reviving gel formula that boosts tone and adds shine to color-treated hair.

What it is formulated to do:
Color Reviving Gloss helps refresh color-treated hair. The shades are designed to either add warmth or neutralize brassiness to keep your color the way you want it. Each tube contains two full applications for shoulder-length hair, while every application lasts six to eight washes. It’s longer lasting than temporary formulations and doesn’t require an activator or mixing like most semi-permanent colors.

What else you need to know:
This product is gluten-free. It comes with two pairs of gloves for mess-free application.
Size 8 oz/ 236 mL · ITEM 1895630
exclusive· limited edition· buzzworthy· online only
$28.00

It's ok...love it...I thought my hair stopped curling because it had grown out a bit, but on a hunch I tried this and it's completely brought my hair back to life....I love this product it's amazing it gets my hair clean without taking all my moisturize away and makes my hair soft if you wash your hair weekly I would recommend
Which hair type is it good for?
✔ Straight
✔ Wavy
✔ Curly
✔ Coiled
✔ Tightly Coiled

What it is:
A gentle, deep cleansing formula that thoroughly removes buildup without stripping away essential moisture, while adding shine and bounce.

Key benefits:
- Removes product buildup
- Boosts curls bounce and shine
- Helps reduce scalp dryness

If you want to know more…
This rejuvenating serum uses micellar technology to remove buildup without stripping. Abyssinian seed oil and jojoba deliver moisture and shine, adding bounce back to waves and curls. Plus, the lush, refreshing scent captures a purifying, relaxing, and clean feeling.

What it is formulated WITHOUT:
- Parabens
- Sulfates
- Phthalates

What else you need to know:
This product is silicone-free.
Size 2.5 oz · ITEM 1200179
exclusive· limited edition· buzzworthy· online only
$20.00

Shine On...best serum...This serum works well at keeping your hair frizz free even when it is humid, I have curly hair and blow dry it straight and then put the glaze serum in my hair....I can put it all the way through my hair and I can go 2-3 days with out washing my hair and it never gets greasy.
What it is:
A finishing product to smooth and polish hair.

What it does:
Ouidad Shine Glaze Serum fights frizz and static while reflecting light to add luminosity and glass-like shine.

What it is formulated WITHOUT:
- Parabens
- Sulfates
- Synthetic Dyes
- Phthalates
- GMOs
- Triclosan

What else you need to know:
This unique finishing product contains crystal silicates that lend optimal control and deliver incredibly sleek results.
Size 6.8 oz/ 201 mL · ITEM 1793850
exclusive· limited edition· buzzworthy· online only
$44.00

In LOVE!...pretty good...I got a sample of this actually thinking it was a face serum but when I realized and tried it on my hair I loved it!...I have wavy to straight hair that is dry and brittle from blonding but this serum makes my hair feel fabulous when I use it before blow drying.
What it is:
A serum to protect and nourish your hair for a healthy look and feel.

What it is formulated to do:
This paraben-free, lightweight formula can be applied to both wet and dry hair to protect against heated tools, UV and environmental damage, and humidity. Handpicked, custom-blended ingredients such as tucuma seed butter, keratin amino acids, and nut oils of macadamia and argan, hydrolised silk, and panthenol protect and nourish the hair without ever weighing it down.

What it is formulated WITHOUT:
- Parabens
- Phthalates

What else you need to know:
Iles Formula was developed between Paris and New York by celebrity hairstylist Wendy Iles who set out to develop an antidote to the celebrity tortured hair that she encountered every day while working on the sets of prestigious photographers and directors. All formulas were rigorously tested around the world in USA, Europe, Middle East, India, Asia, and Australia. All formulas come in luxurious packaging of well thought design. The exquisite perfume was developed with a French touch, evident while the hair is warm after using hot water and heated tools, then settles to a subtle aroma of white flowers once hair has cooled. All hair types transform instantly to the Iles Formula signature spun silk finish.
Size 1.4 oz · ITEM 1646512
exclusive· limited edition· buzzworthy· online only
$59.00

A must have!...Great product!...I love that I can use this serum on dry hair too because I only wash my hair twice a week....For me, whenever I took a shower or throughout the day, I would probably lose 50-100 strands of hair and my hair was getting thinner.
What it is:
A patented tri-peptide complex to nourish the follicle and support natural anchoring of the hair.

What it is formulated to do:
This concentrated hair serum delivers a patented tri-peptide complex to revitalize women's hair. Formulated specifically and exclusively to address thinning and loss of hair, it is clinically proven to rejuvenate hair when used as part of the ReTress System.

What it is formulated WITHOUT:
- Parabens
- Sulfates
- Phthalates

Research results:
In a 16-week clinical study:
- 95% of women had significant or moderate hair density improvement when used as part of the ReTress 4 step Hair Rejuvenation System
Size 1.7 oz · ITEM 1807296
exclusive· limited edition· buzzworthy· online only
$26.00

liked it...So shiny!...The scent is wonderful, and although I feel this product is a bit pricey, it should last for a LONG time since you don't have to use much at all to achieve desired results....I have 2b wavy/curly hair and I really like this serum.
What it is:
A water-resistant serum that adds shine and smooths frizz and flyaways.

What it is formulated to do:
Frizz-prone curls and waves tend to refract light and can appear dull. This water-resistant serum adds shine and smooths flyaways while creating a protective barrier that blocks humidity. Dual encapsulation technology ensures a frizz-free finish, as tiny microspheres deliver moisturizing coconut oil and humidity-blocking moringa oil right where your hair needs it most. Time-release actives help control frizz and extend your wavy or curly style.

What it is formulated WITHOUT:
- Parabens
- Sulfates
- Phthalates

What else you need to know:
Coconut & Moringa Oils collection has products to block humidity for frizz-free wavy or curly styles—each featuring a medley of woods, coconut, and sweet vanilla. Coconut oil is a fast-absorbing, nutrient-rich miracle oil that deeply penetrates to support hair’s natural protein structure and revitalize. Moringa oil, rich in vitamin B5, helps to improve manageability while providing a protective barrier that blocks humidity.

Notes:
Woods, Coconut, Sweet Vanilla.
Size 2.2 oz/ 64 mL · ITEM 1730969
exclusive· limited edition· buzzworthy· online only
$13.00

Thank you!...Good stuff....Now, the moisture I get is not an overload of mushy hair that needs to be corrected with a protein treatment or anything, but instead it delivers just the perfect pack of moisture and softness needed to coat my strands to keep them from breaking....I add just two drops to my ends after I blow dry and it instantly makes my hair look shiny.
What it is:
A thick, rich blend of moisturizing oils that effectively softens dry, brittle, and coarse hair.

What it is formulated to do:
This thick, shiny oil acts as a barrier agent and protective medium against harsh conditions and extremes. It is a natural humectant and possesses hair conditioning, thickening, and softening properties—protecting ends and moisturizing dry, brittle, and coarse hair.

What it is formulated WITHOUT:
- Parabens
- Sulfates

What else you need to know:
This product is 100 percent natural and silicone-free.
Size 2.1 oz/ 65 mL · ITEM 2011591
exclusive· limited edition· buzzworthy· online only
$20.00

Love it!...Amazing Product...I've struggled with dandruff/buildup since a young age (no matter how well I wash my hair) but I was SO happy with the results of this product!...I still had a few spots that were MILDLY itchy but NOTHING compared to what I have been dealing with.
Which hair type is it good for?
✔ Straight
✔ Wavy
✔ Curly
✔ Coiled
✔ Tightly Coiled

What it is:
A lightweight scalp treatment spray that reinforces the scalp's natural protection and provides immediate and 24-hour relief and comfort.

Key benefits:
- Provides scalp comfort
- Maintains an optimal scalp balance
- Refreshes and soothes

If you want to know more…
Reset your scalp with instant relief. The soothing scalp spray instantly refreshes and comforts the scalp. The scalp’s natural protection is reinforced and irritation is soothed for 24-hour relief from triggers that cause sensitivity such as stress, seasonal change, travel, over coloring, and styling. Formulated with peony extract for soothing and anti-irritating properties, the optimal scalp balance is maintained and protected against irritation. The non-greasy, fresh, lightweight formula can be sprayed as needed on the scalp and will not weigh down hair.

What it is formulated WITHOUT:
- Parabens
- Sulfates

What else you need to know:
This product is silicone-free, vegan, and pH balanced.

Research results:
In a tolerance test on irritated scalp, 32 subjects during 7 days, once-daily use:
- 97% of women felt immediate comfort and reduced irritation

After 7 days:
- 94% of women felt scalp was hydrated
- 90% of women felt scalp was protected
Size 1.6 oz/ 50 mL · ITEM 1921147
exclusive· limited edition· buzzworthy· online only
$28.00

Love it....The best...I have thick and curly/wavy hair and after applying this product on my damp hair it makes detangling a breeze....It gives my hair a great texture and a little goes a long way.
Which hair type is it good for?
✔ Straight
✔ Wavy
✔ Curly
✔ Coiled
✔ Tightly Coiled

What it is:
A lightweight styling serum that effortlessly detangles, defines, and protects hair from heat damage.

Key benefits:
- Protects hair from heat damage
- Gives gloss, shine, and definition
- Detangles and controls frizz

If you want to know more…
Non-sticky and super sleek, this serum enhances the natural texture of all hair types. It can be used to prep hair for protection before heat styling, to detangle, as a finishing product to add shine and definition, or for a quick style refresh while out and about.

What it is formulated WITHOUT:
- Parabens
- Sulfates
- Phthalates

What else you need to know:
"This serum gives a defined, glossy—but never greasy—finish to all hair texture types. I always warm it first by rubbing a few drops in between my palms and over the backs of my hands. This makes a little to go a long way and encourages an even distribution through the hair."—Vernon François, Creative Director and Founder
Size 4 oz/ 118 mL · ITEM 1984525
exclusive· limited edition· buzzworthy· online only
$29.00

Love it!...Love it!!...Lowkey, I tried it on a weave first (because I didn't want to risk burning my hair) but then I tried it out on my hair....With a recommendation from a friend I tried it and it worked!
Which hair type is it good for?
✔ Straight
✔ Wavy
✔ Curly
✔ Coiled
✔ Tightly Coiled

What it is:
A frizz-defying non-greasy serum that delivers heat protection up to 450 degrees and helps to reduce breakage by up to 90 percent.

Key benefits:
- Helps protect up to 450° F
- Helps reduce breakage by 90%
- Minimizes frizz and flyaways

If you want to know more…
Whether you wear sleek, flat iron styles, voluminous blowouts, or gorgeously timeless curls, Protect. Heat Serum delivers up ultimate heat protection for worry-free styling. Protect is lightweight, enhances shine, and easily rinses away with Form Beauty’s Clarify so you can build your best styles on a fresh canvas. Just apply prior to heat styling to help reduce hair breakage.

What it is formulated WITHOUT:
- Parabens
- Sulfates
- Phthalates

What else you need to know:
This product is cruelty-free and formulated without synthetic perfumes and dyes.

The FORM hair care collection is rooted in the idea of coactivity—the brand’s way of saying that their products will not only make your hair look great, but also feel healthier. Their formulation philosophy adheres to a rigorous international standard that avoids over 2,000 potentially harmful ingredients, which means that their hair care solutions are simple, safe, effective, and complementary to your long- and short-term styling needs.

Research results:
In an independent, instrumental laboratory study, it was found:
- Damage caused by excessive heat treatment was reduced 90%
- Product maintained 100% of water content in hair
Size 2 oz · ITEM 1801935
exclusive· limited edition· buzzworthy· online only
$48.00

This has been doing wonders for my super fine, slow to grow hair....Love the product but have to take away a star because the applicator barely picks up any product....Apart from that frustration, I've noticed my hair is fuller looking and stronger, so I've got no complaints about the actual serum....This product has done wonders for my hair, but like everyone else has said, the dropper it comes with is terrible!
What it is:
A powerful, antiaging overnight treatment serum that helps maintain strong, healthy hair and follicles.

What it is formulated to do:
Much like skincare for the scalp, this intensive, overnight, non-greasy serum uses advanced technology based on stem cell technology, copper peptides to nourish, and ingredients that normalize and stabilize thinning hair and support scalp health. Not only does it remove debris, sebum, and build-up from the scalp, but it contains a DHT-inhibitor to unclog follicles and promote effective penetration of other treatments.

It provides the scalp and hair follicle with polyphenols, zinc, and glycine to encourage revitalization of the hair growth cycle, helping support a healthy scalp, which encourages hair growth. It contains the proprietary keratin amino complex, which was developed to act on and effectively address all three fundamental parameters of hair strength: tensile properties, torsional stretching, and cuticle abrasion. It penetrates into the cortex of hair, building strength from within, and reinforcing and protecting hair's surface. It’s enriched with an immediate filament protein, which contributes to hair's core strength—sustaining the hair's integrity as it grows from root to tip, and throughout the growth process.

What it is formulated WITHOUT:
- Parabens
- Sulfates
- Phthalates

What else you need to know:
This product can be used every night or every other night. The non-greasy formula does not require you to wash your hair in the morning. The Keranique system of haircare solutions was developed to effectively cleanse, protect, treat, and repair both thin or thinning hair and the scalp. Mild cleansers, clean conditioners, intensive treatments, and lightweight styling products deliver healthy, natural hair growth, abate hair loss, maximize fullness, and care for the scalp—creating an optimized environment to promote the enduring strength, growth, and beauty of hair.
Size 1.7 oz · ITEM 1840065
exclusive· limited edition· buzzworthy· online only
$59.00

Healthy addiction...Very well worth the price....I have fine, curly hair and have tried many hair oils and serums from Sephora....I put one pump in my hands and smooth it on damp hair.
Which hair type is it good for?
✔ Straight
✔ Wavy
✔ Curly
✔ Coiled
✔ Tightly Coiled

What it is:
A reconstructing lightweight serum formulated to fight the signs of hair aging.

Key benefits:
- Helps seal split ends and improve brittleness
- Regenerates hair fibers
- Illuminates dry, dull, tired-looking hair

If you want to know more…
This formula features a powerful synergy of cassia angustifolia, hyaluronic acid, and konjac extract to create a protective bio-film on hair, making it soft, conditioned, bright, strong, and young looking. It is ideal for damaged and treated hair.

What it is formulated WITHOUT:
- Parabens
- Sulfates

What else you need to know:
Rossano Ferretti products benefit from the best that nature can offer for the beauty of hair. Each product features a high concentration of the finest raw materials from plant and vegetable oils, optimized in durability and stability by a minimal use of the most advanced biopolymers. Made in Italy.

This treatment does not contain polluting or non-biodegradable ingredients.
Size 3.4 oz · ITEM 1839968
exclusive· limited edition· buzzworthy· online only
$51.00

I love this product!...Best leave in conditioner ever!...The smell is amazing and it make my hair look great when I apply it and comb through right after washing....you literally need a very small amount of product through the length and ends and the result is amazing, your hair will be super smooth and shiny!
Which hair type is it good for?
✔ Straight
✔ Wavy
✔ Curly
✔ Coiled
✔ Tightly Coiled

What it is:
A powerful, natural, leave-in treatment serum that leaves hair silky, smooth, moisturized, and tangle-free.

Key benefits:
- Aids in restoring, strengthening, and conditioning dry and damaged hair
- Adds shine, luster, and silkiness while detangling and reducing frizz
- Safe for color- and keratin-treated hair

If you want to know more…
Intenso 03 Softening and Smoothing Serum smooths and protects hair, without weighing it down. It leaves hair soft and supple to the touch. Like the whole product range, it is free of parahydroxybenzoates, formaldehyde, and SLS.

What it is formulated WITHOUT:
- Parabens
- Sulfates
- Phthalates

What else you need to know:
Inside its black and white packaging, a green heart beats. Rossano Ferretti Parma products benefit from the best that nature can offer for the beauty of hair.

The Rossano Ferretti Parma hair care portfolio is unsurpassed in excellence, thanks to a high concentration of the finest raw materials from plant and vegetable oils, optimized in durability and stability by a minimum use of the most advanced biopolymers.

This product is also cruelty-free and 100 percent made In Italy.
Size 3.4 oz · ITEM 1839984
exclusive· limited edition· buzzworthy· online only
$46.00

Love this stuff!!!...You will love your hair....The Velluto Smoothing Serum is the perfect addition to my hair regimen....The best part is that a little goes a long way and it smells so amazing that people comment on it regularly.
Which hair type is it good for?
✔ Straight
✔ Wavy
✔ Curly
✔ Coiled
✔ Tightly Coiled

What it is:
A smoothing serum that eliminates frizz.

Key benefits:
- Reduces frizziness, static, and flyaways
- Safe for color- and keratin-treated hair
- Increases shine while strengthening hair

If you want to know more…
Velluto 14 Smoothing Serum replenishes the surface of dull, dry, and rough hair. It nourishes while offering exceptional leave-in care.

The whole product range is free of parahydroxybenzoates, formaldehyde, and SLS.

What it is formulated WITHOUT:
- Parabens
- Sulfates
- Phthalates

What else you need to know:
Inside its black and white packaging, a green heart beats. Rossano Ferretti Parma products benefit from the best that nature can offer for the beauty of hair.

The Rossano Ferretti Parma hair care portfolio is unsurpassed in excellence, thanks to a high concentration of the finest raw materials from plant and vegetable oils, optimized in durability and stability by a minimum use of the most advanced biopolymers.

This product is also cruelty-free and 100 percent made In Italy.
Size 2.5 oz/ 75 mL · ITEM 1989458
exclusive· limited edition· buzzworthy· online only
$18.00

I love it....I'm so glad that I did....Been a fan of Kiehl's Creme with Silk Groom for more years than I care to remember....Another hair product I love.
Which hair type is it good for?
✔ Straight
✔ Wavy
✔ Curly
✔ Coiled
✔ Tightly Coiled

What it is:
A unique, ultra-light, and non-greasy hair serum.

Key benefits:
- Smooths frizz
- Conditions dry ends
- Protects hair from humidity

If you want to know more…
This super-smoothing serum smooths frizz and flyaways, nourishes dry ends, and controls hair without weighing it down. Infused with a blend of natural oils derived from sunflower seeds, sesame seeds, and soy beans, and enriched with vitamin E, it protects hair from humidity and boosts shine, leaving strands clean, soft, and silky.