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Korean Hair Serum – How It Fits Into the K-Beauty Hair Routine

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Infographic explaining Korean hair serum. It describes what it is, including being lightweight, smoothing frizz, and nourishing hair and scalp. Key benefits include strengthening hair, adding shine, nourishing, and supporting growth. Instructions include applying 1–2 pumps to damp hair, spreading evenly through the lengths, and avoiding the roots to prevent greasiness.

Koreans are known for their detailed skincare routines. But many people don’t know there’s a similar approach for hair.

In the West, haircare usually focuses on the hair strands. In Korea, the focus starts with the scalp. A healthy scalp means healthier, stronger, shinier hair.

Some Koreans follow a 10-step hair care routine. Half of those steps are just for scalp care. The full routine includes:

  1. Scalp exfoliation – Removes buildup and unclogs follicles. Do this before shampoo (1–2x per week).
  2. Shampoo and scalp massage – Cleanses both scalp and hair. Massage improves circulation.
  3. Vinegar rinse – Balances scalp pH and removes residue. Use after shampoo (1x per week).
  4. Conditioner – Moisturises and detangles the hair, not the scalp.
  5. Hair mask – Deep conditioning for the hair shaft. Use weekly or as needed.
  6. Scalp mask – Targets scalp issues like dryness or oiliness. Usually once a week.
  7. Scalp tonic – A lightweight treatment to stimulate and nourish the scalp.
  8. Scalp serum – More concentrated, treats specific concerns like hair thinning or inflammation.
  9. Hair serum – Seals in moisture, smooths frizz, adds shine to hair strands.
  10. Overnight hair treatment – Provides intense hydration or repair while you sleep.

In this post, we’re focusing on step 9 – the hair serum.

This infographic lists a 10-step Korean haircare routine. The steps include: scalp exfoliation, shampoo and scalp massage, vinegar rinse, hair mask, scalp mask, scalp tonic, scalp serum, hair serum, and overnight hair treatment. Each step is paired with a simple line icon. The image has a soft pink background and includes the UK Beauty Room logo at the bottom.

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Why You Need a Hair Serum in Your Routine

After applying your scalp products, the next step is to seal your strands with a hair serum.

Hair serums help:

  • Lock in moisture
  • Add shine
  • Smooth frizz
  • Detangle
  • Protect from heat and pollution

They’re used as the final step to create a barrier over the hair. This helps prevent split ends and dryness.

This infographic explains why you need a hair serum in your routine. It highlights four benefits: smoothing and adding shine, eliminating frizz, sealing the hair cuticles, and protecting against damage. The design includes illustrations of a woman with shiny hair, frizzy hair, hair strands, and a bottle of serum, with the UK Beauty Room logo at the bottom.

Korean Hair Serum Recommendations

Here are a few to try:

✅ Mise en Scene Perfect Repair Serum
A cult favorite. It smooths frizz, adds shine, and contains seven different oils. Great for damaged or dry hair.

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Mise En Scene Perfect Super Rich Hair Serum, Argan...
Mise En Scene Perfect Super Rich Hair Serum, Argan…
  • INTENSIVE CARE: Rich serum formulated with argan oils provides deep nourishment and intensive care…
  • KOREAN BEAUTY: Premium hair essence serum from Korea’s trusted haircare line for professional…
  • VERSATILE USE: Lightweight formula suitable for all hair types, can be applied to wet or dry hair…
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Last update on 2025-07-08 / Affiliate links / Images from Amazon Product Advertising API

✅ Innisfree Camellia Hair Serum
Lightweight with camellia oil. Perfect if you want moisture without a greasy finish.

✅ Nature Republic Argan Essential Deep Care Hair Essence
Rich in argan oil. Helps repair dry, brittle hair and adds a silky finish.

How to Use a Hair Serum

  1. Apply to clean, damp hair after your conditioner or mask.
  2. Use 1-2 pumps and spread evenly from mid-lengths to ends.
  3. Avoid the roots to prevent greasiness.
  4. You can also use it on dry hair to tame frizz or add shine.

Tip: Start small. You can always add more if needed.

Infographic showing how to use hair serum. Steps include applying to clean, damp hair after conditioner, using 1–2 pumps from mid-lengths to ends, avoiding the roots to prevent greasiness, and using on dry hair to tame frizz or add shine.

My Experience Using Korean Hair Serums

I’ve tested many Korean hair serums over the years. What I love is that they tend to be lightweight but effective.

Unlike some Western brands, they rarely leave a greasy residue. My hair always feels soft, smooth, and easier to style.

If you’re dealing with dryness, frizz, or split ends, adding a serum can make a big difference fast.

Final Thoughts

Hair serums are an essential step in Korean haircare. They lock in hydration, protect from damage, and leave your hair glossy and smooth.

If you haven’t tried a Korean hair serum yet, give one of the products above a go. They’re affordable, effective, and a great addition to your routine.

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This post was a review of Etude House Silk Scarf, a Korean hair serum