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Buy Best Selling Hair Serums Online for Hair Growth, Frizz & Smooth Hair at Nykaa

Hair serum can mean different things depending on what your hair needs. Some formulas are made for the scalp and focus on hair growth or density, while others are meant for the lengths to manage frizz, add shine, smooth rough hair or protect it during styling. Nykaa's best-selling hair serum range includes both, so it helps to check where the product is meant to be applied before you buy.

Hair Serum at a Glance

  • Hair growth-focused scalp care: Wishcare Hair Growth Serum, The Ordinary Multi-Peptide Hair Serum
  • Hair fall-focused care: Kérastase Genesis, L'Oréal Professionnel Serioxyl
  • Frizz control: L'Oréal Paris Extraordinary Oil, Biolage Smoothproof
  • Smoothing and shine: Kérastase Elixir Ultime, Streax Vitariche Gloss
  • Heat protection: Olaplex No. 7 Bonding Hair Oil
  • Repair and damage care: &Done Rebuilding Serum, L'Oréal Professionnel Absolut Repair
  • Scalp care: inde wild Moonlight Scalp Serum, Bontress Pro+
  • Dry and rough lengths: Nexxus Promend Oil Resurrection, L'Oréal Professionnel Xtenso Care

What Is Hair Serum Used For?

Hair serum is used either on the scalp or through the lengths, depending on the product. It can be part of a routine for frizz, dryness, roughness, shine, styling or scalp-focused hair care.

A scalp serum is not the same as a finishing serum. Growth-focused and scalp products are generally applied to the scalp, while smoothing and anti-frizz formulas are usually meant for the lengths and ends.

Scalp Serums for Hair Growth-Focused Care

If your main concern is hair growth or density, look for a product specifically made for the scalp rather than using a regular finishing serum on the roots.

Wishcare Hair Growth Serum Concentrate with Redensyl & Rosemary, The Ordinary Multi-Peptide Hair Serum and Be Bodywise Hair Growth Serum Roll On are among the scalp-focused products in the bestseller range.

These products have different formulations and directions, so use them according to the instructions on the individual product.

Hair Serums for Hair Fall-Focused Care

Hair fall-focused products also belong to the scalp-serum category. They are different from products that simply make the hair lengths look smoother.

Kérastase Genesis Anti-Hair Fall Daily Scalp Serum, L'Oréal Professionnel Serioxyl Advanced Hair Growth Serum and Bontress Pro+ Hair Serum are featured in the current bestseller range.

If hair fall is your main concern, start by checking whether the product is specifically intended for scalp use.

Anti-Frizz Serums for Smooth-Looking Hair

Frizz is one of the more common reasons to reach for a hair serum. These formulas are generally applied through the lengths to make the hair feel smoother and easier to manage.

L'Oréal Paris Extraordinary Oil Hair Serum, Biolage Smoothproof 6-in-1 Hair Serum and Streax Professional Vitariche Gloss Hair Serum are among the options in the bestseller selection.

Start with a small amount, particularly if you have fine hair. Add more only if the lengths need it.

Hair Serum for Dry & Rough Hair

When the lengths feel dry or rough, a smoothing or oil-serum formula can make them feel softer and more manageable.

Nexxus Promend Oil Resurrection Hair Serum, L'Oréal Professionnel Xtenso Care Serum and Kérastase Elixir Ultime Hair Oil-In-Serum are options in the current range.

For dry ends, work the product through the mid-lengths and ends rather than applying it heavily at the roots.

Hair Serum for Shine

Some serums are less about a specific hair concern and more about giving the finished hairstyle a smoother, more polished appearance.

Streax Professional Vitariche Gloss Hair Serum is positioned around shine and frizz control. Kérastase Elixir Ultime Hair Oil-In-Serum and L'Oréal Paris Extraordinary Oil are also options if you prefer an oil-serum texture.

A few drops are generally enough for the lengths. Too much can leave the hair looking greasy, especially when the hair is fine.

Hair Serum With Heat Protection

If you regularly use a blow dryer, straightener or curling tool, check the product description for heat protection rather than assuming every serum offers it.

Olaplex No. 7 Bonding Frizz Reduction & Heat Protection Hair Oil is part of the current bestseller selection and combines heat protection with frizz-focused hair care.

Follow the product directions for the amount to use and when to apply it in relation to heat styling.

Hair Serums for Damaged Hair

Coloured hair, chemically treated hair and hair that goes through frequent heat styling may need more than a basic finishing product.

&Done Anti-Frizz Rebuilding Serum with Biotech Bond Repair++ and L'Oréal Professionnel Absolut Repair 10-in-1 Multi-Benefit Hair Serum are among the products in the current bestseller range. L'Oréal Professionnel Xtenso Care Serum is another option for smoother-looking hair.

A serum can be part of the routine, but it does not replace conditioner or a hair mask when those are needed.

Scalp Serum or Serum for Hair Lengths?

This is the first thing to check when choosing a hair serum.

Hair growth-focused care

Product type: Scalp serum
Where to apply: Scalp

Hair fall-focused care

Product type: Scalp serum
Where to apply: Scalp

Frizz

Product type: Anti-frizz serum
Where to apply: Lengths

Dry ends

Product type: Smoothing or nourishing serum
Where to apply: Mid-lengths and ends

Shine

Product type: Gloss or oil-serum
Where to apply: Lengths

Heat styling

Product type: Heat-protecting serum or oil
Where to apply: As directed

Damaged lengths

Product type: Repair-focused serum
Where to apply: Lengths

Scalp care

Product type: Scalp serum
Where to apply: Scalp

Best Selling Hair Serums at Nykaa

Wishcare Hair Growth Serum Concentrate with Redensyl & Rosemary - In-Vivo Tested - Controls Hairfall

Hair growth / scalp care

L'Oreal Paris Extraordinary Oil Hair Serum, Anti-Frizz Serum With UV Protection

Frizz control

The Ordinary Multi-Peptide Hair Serum For Denser, Thicker, Healthier Hair

Hair density

Be Bodywise Hair Growth Serum Roll On - 3% Rosemary, 3% Redensyl & 2% Aminexil For New Hair Growth

Scalp / hair growth

Nexxus Promend Oil Resurrection Hair Serum

Smoothing and hair care

Biolage Smoothproof 6-in-1 Hair Serum for Frizzy Hair with Avocado & Grape Seed Oil

Frizz control

Kérastase Genesis Anti-Hair Fall Daily Scalp Serum, With 1.5% Aminexil & Ginger Root Extract

Scalp / anti-hair fall

Olaplex No. 7 Bonding Frizz Reduction & Heat Protection Hair Oil

Frizz and heat protection

Pilgrim 3% Redensyl 4% Anagain Rosemary Korean Black Rice Advanced Hair Growth Serum For Men & Women

Hair growth / scalp care

Streax Professional Vitariche Gloss Hair Serum for Frizz Control & Shine with Vitamin E

Frizz and shine

L'Oréal Professionnel Serioxyl Advanced Hair Growth Serum

Hair growth / scalp care

Bontress Pro+ Hair Serum With Tetrapeptides

Scalp / hair care

L'Oréal Professionnel Liss Unlimited Leave-In Serum for Frizz Free Hair and Intense Smoothing

Smoothing

L'Oréal Professionnel Xtenso Care Serum, Frizz-Free Smooth Hair With Pro-Keratin & Incell

Smoothing

inde wild Moonlight Scalp Serum With Moringa, Bhringraj & Amla For Maintaining Healthy Scalp

Scalp care

&Done Anti-Frizz Rebuilding Serum with Biotech Bond Repair++

Frizz and repair

Kérastase Elixir Ultime Hair Oil-In-Serum Refillable For All Hair Types

Shine and smoothing

L'Oréal Professionnel Absolut Repair 10-in-1 Multi-Benefit Hair Serum

Repair and multi-benefit care

Which Hair Serum Should You Pick?

Hair growth-focused care

Look for: Scalp serum

Hair fall-focused care

Look for: Anti-hair fall scalp serum

Less visible frizz

Look for: Anti-frizz serum

Smoother lengths

Look for: Smoothing serum

More shine

Look for: Gloss or oil-serum

Dry ends

Look for: Nourishing or smoothing serum

Heat styling support

Look for: Heat-protecting serum or oil

Damaged hair care

Look for: Repair or bond-focused serum

Scalp care

Look for: Scalp serum

A lightweight finishing step

Look for: Small amount of serum on the lengths

Hair Serum for Dry Hair

Dry hair usually needs extra attention through the lengths and ends. A smoothing or nourishing serum can help the hair feel softer and make it easier to manage after washing.

Apply a small amount to damp or dry hair according to the product instructions. If the ends are particularly dry, concentrate the product there.

Hair Serum for Curly & Wavy Hair

Curly and wavy hair can benefit from a serum when frizz makes the hair look rough or less defined.

Work a small amount through the lengths after washing and distribute it evenly. If you need stronger hold or curl definition, a dedicated curl cream or styling product may still be needed.

Hair Serum Texture Guide

Lightweight serum

Usually suits: Fine hair
Common use: Frizz and finishing

Oil-serum

Usually suits: Dry or rough hair
Common use: Smoothing and shine

Scalp serum

Usually suits: Scalp concerns
Common use: Scalp care

Leave-in serum

Usually suits: Frizzy or unruly hair
Common use: Smoothing

Repair serum

Usually suits: Damaged or treated hair
Common use: Length care

Multi-benefit serum

Usually suits: Multiple concerns
Common use: Hair care and styling

Hair Serum vs Hair Oil

Hair serum and hair oil can overlap, but they are not always used in the same way. A serum is often chosen for concerns such as frizz, shine, smoothing or heat protection. Hair oil can be richer and may be used before washing or as a finishing product, depending on the formula.

Some newer products combine an oil and serum format, so the product instructions are worth checking before use.

How to Apply Hair Serum

  1. Check the directions to see whether the product is meant for the scalp or lengths.
  2. Start with a small amount rather than applying too much at once.
  3. Apply it to the intended area - scalp products go on the scalp, while finishing serums usually go through the lengths.
  4. Spread it evenly with your fingers or a comb.
  5. Style as usual and add more only if the hair needs it.

Common Hair Serum Mistakes to Avoid

  • Applying a lengths-focused serum directly to the scalp
  • Using too much product in one go
  • Applying a serum without checking whether it is meant for wet or dry hair
  • Expecting an anti-frizz serum to address a scalp concern
  • Treating every hair-growth-focused serum as interchangeable
  • Ignoring the directions on scalp-focused formulas

Common Questions

Q1: Which hair serum is designed for hair growth-focused care?

Hair growth-focused serums are made for scalp use and are different from anti-frizz finishing serums. The current bestseller range includes Wishcare Hair Growth Serum, The Ordinary Multi-Peptide Hair Serum and Be Bodywise Hair Growth Serum.

Q2: Which hair serum is good for frizzy hair?

Anti-frizz formulas are designed to smooth the lengths and make hair easier to manage. L'Oréal Paris Extraordinary Oil, Biolage Smoothproof and Streax Vitariche Gloss are among the options in the bestseller range.

Q3: Are there hair serums for hair-fall-focused care?

Some scalp serums are specifically positioned around hair-fall care. The results can vary from person to person and depend on the reason for hair fall. Use these products according to their individual directions.

Q4: Should hair serum be applied to the scalp?

Only if the product is specifically designed for scalp use. Many anti-frizz and smoothing serums are meant for the lengths and ends instead.

Q5: Can I use hair serum every day?

Some finishing serums can be used regularly, while scalp products may have their own usage instructions. Follow the directions on the product you choose.

Q6: Is hair serum good for dry hair?

A smoothing or nourishing serum can help dry-looking lengths feel softer and easier to manage. It is generally used through the mid-lengths and ends rather than the scalp.

Q7: What is the difference between hair serum and hair oil?

Hair serum is often used for finishing concerns such as frizz, shine, smoothing or heat protection. Hair oil can be richer and may be used before washing or as a finishing product, depending on the formula.

Q8: Can I use hair serum before heat styling?

Yes, when the product specifically offers heat protection. Olaplex No. 7, for example, is positioned as a frizz-reduction and heat-protection hair oil. Always check the product directions before styling.

Hair Serum Price List

Hair Serum Price List - Product names and prices as of November 5, 2026
Hair SerumPrice
The Ordinary Multi-Peptide Hair Serum For Denser, Thicker, Healthier Hair (All Hair Types)₹1849
Wishcare Hair Growth Serum Concentrate with Redensyl & Rosemary - In-Vivo Tested - Controls Hairfall₹690
L'Oreal Paris Extraordinary Oil Hair Serum, Anti-Frizz Serum With UV Protection₹599
Be Bodywise Hair Growth Serum Roll On - 3% Rosemary, 3% Redensyl & 2% Aminexil For New Hair Growth₹599
inde wild Champi Hair Oil With Bhringraj, Brahmi & Amla For Regrowth, Hairfall & Dandruff Control₹1334
Last Updated: November 5, 2026

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