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Keratin Oil Serum for Smooth Hair

This lightweight, paraben-free serum smooths frizz and adds shine, while deeply hydrating dry strands and softening the look of damage.
5
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Keratin Oil Serum for Smooth Hair
Keratin Oil Serum for Smooth Hair
Keratin Oil Serum for Smooth Hair
Keratin Oil Serum for Smooth Hair
Keratin Oil Serum for Smooth Hair
Keratin Oil Serum for Smooth Hair
Keratin Oil Serum for Smooth Hair

Complete Your Routine

This hair oil revitalizes dry and damaged hair and helps you create amazing hairstyles! Its lightweight formula hydrates and revitalizes frizzy, unruly, and color-treated hair, instantly eliminating frizz and splitting ends. The Wondersilk™ formula with keratin and argan oil makes your hair smooth, shiny, and easy to manage. Well-defined curls, sleek buns, or gorgeous locks - this hair serum oil guarantees silky, soft, and frizz-free styles for all hair types.

The Ten-Second Smooth


If your hair frizzes the second you step outside, feels dry no matter how much conditioner you use, or still looks rough months after your last color appointment, this serum was made for you. Powered by our Wondersilk™ complex with Keratin, Argan Oil, and Hydrolyzed Silk, it smooths the cuticle, seals in moisture, and calms frizz in the time it takes to rub two drops between your palms. No rinsing, no waiting, no greasy weigh-down. One bottle, made to last through about one month of regular use.


Recommended for: All hair types, including fine, curly, and color-treated hair


Targets: Frizz & Flyaways, Dryness, Dullness, Split Ends

  1. Towel-dried or fully dry, both work.

  2. Warm one to two pumps between your palms.

  3. Work through mid-lengths and ends, skipping the roots.

Pro Tip: Ends feeling rough this week? Add one more pump on the tips before bed and let it sit overnight.

  • Kills frizz and flyaways on contact, humidity included

  • Hydrates dry, brittle strands without any of the weigh-down

  • Seals split ends so hair reads healthier at the length, not just at the roots

  • Softens the look of heat and color damage the more you use it

  • Shows up as shine from the very first application


Keratin: rebuilds strength from the inside of the strand, not just the surface


Argan Oil: hydrates deeply and stands between your hair and heat or sun


Hydrolyzed Silk: smooths the cuticle so light bounces off it instead of catching on frizz


Sweet Almond Oil: fills in the rough patches without adding any weight


Vitamins A, E, and B5: keep shine and strength going, with antioxidant backup


Full Ingredients:
Cyclopentasiloxane, Dimethicone, Cyclohexasiloxane, D-Panthenol (Pro-Vitamin B5), Tocopheryl Acetate, Tocopherol (Vitamin E), Biotin (Vitamin B7), Retinyl Palmitate (Vitamin A), Hydrolyzed Keratin, Hydrolyzed Silk, Hydrolyzed Wheat Protein, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Argania Spinosa Kernel Oil, Cocos Nucifera (Coconut) Oil, Ethylhexyl Methoxycinnamate, Butyl Methoxydibenzoylmethane, Sodium Polystyrene Sulfonate, Propanediol, Aqua, Phenoxyethanol, Ethylhexylglycerin, Parfum (Fragrance), Linalool, Benzyl Benzoate, Butylphenyl Methylpropional, Alpha-Isomethyl Ionone, Coumarin.

  • Free Shipping

Shipping is free for all US orders over $35.


  • Shipping Time

Most orders are shipped within 1 business day and delivered within 3–5 business days.


  • Returns

100% Satisfaction Guaranteed. Returns accepted within 60 days of receipt for a full refund.


  • Order Tracking

All orders include tracking information, so you can follow your package every step of the way.


  • Contact & Support

Our customer care team is here to help with any questions about your order, shipping, or returns.

Trusted by Women Who’ve Tried Everything

Amanda R.
5
Amanda R.
Verified Buyer

My curls finally stay put.

No matter how many products I tried, my curls would puff up into a frizzy triangle before I even left the house. I was close to cutting my hair. Now I use two pumps on damp hair, and after a few weeks my curls actually keep their shape instead of turning into a fluffy mess by lunchtime.

Jessica T.
5
Jessica T.
Verified Buyer

Humidity doesn't ruin my hair anymore.

By mid-morning my hair would already be frizzy, especially on humid days. I've been applying this to damp hair after every shower, and sometimes a tiny bit on the ends before going out. It's the first product that's kept my hair smooth from morning until evening.

Monica D.
5
Monica D.
Verified Buyer

My waves finally have definition.

Finding the right balance for wavy hair is impossible. Too much product leaves it greasy, too little and it turns into frizz. This absorbs beautifully without feeling heavy, and my waves look soft, defined, and natural instead of flat.

Rachel P.
5
Rachel P.
Verified Buyer

Even my colorist noticed the difference.

I get my hair colored every couple of months, and my ends usually look dry long before my next appointment. After using this every day for about a month, my stylist asked what I'd been doing differently. My hair just looks healthier, especially the ends, and that's exactly what I was hoping for.

Image

Frizz Control: Hydrolyzed Silk smooths the cuticle the moment it touches your hair, so flyaways stay down even on the stickiest, most humid days.


Deep Hydration: Argan Oil and Sweet Almond Oil soak into dry strands fast, with none of the residue you'd expect from something this hydrating.


Shine & Smoothness: Keratin fills in the rough, damaged spots along the shaft, so light catches evenly from mid-length to tip instead of scattering off broken cuticle.


Damage Repair: Vitamins A, E, and B5 back up your hair's own strength, so split ends and breakage visibly ease off the longer you stick with it.

Trusted by thousands
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124 reviews
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Frequently Asked Questions

No. It's a lightweight serum, not a heavy oil, so it absorbs fast instead of sitting on top of your hair. Start with one to two pumps and add more only if your hair is on the thicker or coarser side.

Yes, it works across all textures. Curls and waves usually need it most since dryness and frizz hit them hardest. Apply on wet curls before you let them air dry, or on dry ends for waves that need a touch-up.

Yes. It's actually one of the best times to use it. Bleached and colored hair tends to be drier and more prone to frizz, and this serum was built for exactly that combination.

As often as you wash your hair, or daily if you want the smoothing effect every day. There's no risk of overdoing it since it's lightweight and rinse-free.

You can use it after every wash or daily to smooth frizz and add shine.

Both work. Apply to damp hair right after the shower for the most control over frizz, or to dry hair anytime you need a quick touch-up on the ends.

Yes. No sulfates, parabens, or mineral oil in the formula.

About one month with regular use, a couple of pumps applied after most washes.

Keratin Oil Serum for Smooth Hair
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124 reviews
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