Best hair serum for frizzy hair

Best Hair Serum for Frizzy Hair: How to Choose and Use It

A good serum is one of the fastest ways to tame frizz. But serums aren't all the same — the best one for you depends on your hair's thickness, condition and colour. Here's how to choose, and how to use it for the smoothest results.

Quick answer: The best hair serum for frizzy hair is lightweight and non-greasy, smooths the cuticle, blocks humidity and ideally protects from heat. Coarse or damaged hair suits a strengthening, keratin-enriched serum; dry, dull hair suits a nourishing serum; blonde or silver hair suits a toning serum.

How Serum Fights Frizz

Frizz happens when a rough or lifted cuticle lets humidity into the hair, making strands swell and separate. A serum forms a thin, smooth layer over the surface that seals the cuticle, reduces moisture exchange with the air and helps strands lie together. See How to Control Frizzy Hair for the full picture.

What to Look For in a Frizz Serum

  • Lightweight, non-greasy texture – smooths without making hair oily.
  • Heat protection – essential if you blow-dry or straighten.
  • Nourishing ingredients – proteins or oils that help strengthen and soften.
  • Works on wet and dry hair – for use before drying and to touch up later.
  • Suits your hair type and colour.

Best Biotop Professional Serums for Frizz

For coarse, damaged or chemically treated frizz: 700 Keratin & Kale Hair Serum

700 Keratin & Kale Hair Serum is a lightweight, non-greasy leave-in that helps strengthen, repair and smooth hair that's damaged or prone to frizz. It works on wet or dry hair, smooths the cuticle to reduce frizz, damage and split ends, and provides heat and UV protection.

For dry, dull or everyday frizz: 911 Quinoa Serum

911 Quinoa Serum is lightweight and non-greasy and suits all hair types. Quinoa proteins and sunflower seed oil seal the cuticle to restore strength and shine while reducing the appearance of frizz and split ends.

For blonde, grey or silver frizz: 19 Pro Silver Serum

19 Pro Silver Serum is a purple-tinted oil-serum that controls frizz and boosts shine while helping neutralise yellow and brassy tones.

Need more hold? Pair with a styler

For all-day frizz control, finish with 101 Anti Frizz Smoothening Hair Styling Cream or 101 Create Glossing Spray. Curly hair? Use 69 Soufflé Hair Cream first, then a drop of serum on dry curls.

How to Apply Serum for Frizz

  1. Wash and condition, then towel-dry gently.
  2. Dispense one or two pumps into your palms (a little more for very thick hair).
  3. Rub your palms together and smooth from mid-lengths to ends, then lightly over the surface.
  4. Comb through to distribute evenly.
  5. Blow-dry with the nozzle pointing down the hair shaft, or air-dry.
  6. Touch up flyaways on dry hair with a tiny extra amount.

Common Mistakes

  • Using too much, which makes hair greasy
  • Applying to the roots
  • Only applying to dry hair — serum works best on damp hair before drying
  • Relying on serum alone without conditioning or masks

How Much Serum to Use

Hair Amount Where
Fine or short 1–2 drops Ends only
Medium, shoulder length 2–3 drops or 1–2 pumps Mid-lengths and ends
Thick, long or coarse 2+ pumps Mid-lengths and ends, worked through in sections

Rub serum between your palms first, then smooth it over the hair rather than dabbing it on. Keep it away from the roots unless your hair is very coarse.

Serum for Monsoon Frizz

  • Apply serum to damp hair before drying, not only as a finish.
  • On very humid days, add a light layer of hairspray with humidity control over the finished style. 101 Create Extra Strong Hold Hairspray offers anti-frizz and humidity control.
  • Carry a small amount of serum to smooth flyaways during the day.
  • Choose braids or buns on the wettest days.

See How to Control Frizzy Hair for a complete routine.

Frequently Asked Questions

Can serum stop frizz completely?

Serum greatly reduces frizz, especially on well-conditioned hair. Very humid days and naturally textured hair may still show some frizz — pair serum with a mask routine and a finishing product.

Can I use serum every day?

Yes, in small amounts. Wash regularly so it doesn't build up.

Serum or oil for frizz?

Serum is usually lighter and better for everyday frizz control and heat protection. See Hair Serum vs Hair Oil.

Should I use serum or leave-in cream?

Serum for sleekness and shine; cream for extra moisture. Very dry, frizzy hair can use both. See Hair Serum vs Leave-In Cream.

Does serum work on curly frizz?

Yes, a few drops smoothed over curls can reduce frizz. Apply it on damp hair with a curl cream, or after drying to smooth the top layer.

Why does serum make my hair greasy?

Usually because too much was used or it went near the roots. Start with one or two drops on the ends.

Find Your Serum

Choose 700 Keratin & Kale for coarse, damaged frizz, 911 Quinoa for dry, dull frizz, or 19 Pro Silver for blonde and silver hair.

Related Guides

Shop: 700 Keratin & Kale Hair Serum · 911 Quinoa Serum · 19 Pro Silver Serum

Back to blog

Leave a comment