Hair growth the
natural way

Our clinically tested Heeyul® formulation 
helps reduce shedding and supports
visibly healthier hair growth.

Discover now

Hair growth the
natural way

Our clinically tested Heeyul® formulation helps reduce shedding and supports visibly healthier hair growth.

Discover now

"High quality, high performance products" Letvia M

"I'm so glad I've found their products" Ema R

"A hair Ampoule which actually works" Ilana B

"​​Really increased the thickness of my hair" Sara Y

The new way for a Healthly-Scalp

Inspired by decades of Korean scalp care, where hair health begins at the root and is treated as part of a daily ritual not an afterthought.

 

Now, we’re bringing that same philosophy beyond Korea introducing a more considered approach to scalp health in the US and worldwide, where care starts at the source and results are built over time.

The new way for a Healthly-Scalp

Inspired by decades of Korean scalp care, where hair health begins at the root and is treated as part of a daily ritual not an afterthought.

 

Now, we’re bringing that same philosophy beyond Korea introducing a more considered approach to scalp health in the US and worldwide, where care starts at the source and results are built over time.

1,600+

Monthly re-orders from customers committed to long-term scalp care.

36k+

Reported visible improvement in hair fullness over 3–5 months

1+year

Of refining formula's loved by 

thousands.

Targeting the root cause's

At the core of the formula is a high concentration of Saccharomyces Ferment Filtrate (20,000 ppm), a fermented ingredient commonly used in advanced Korean scalp care to help maintain a balanced scalp environment and support the conditions needed for healthy hair growth.

 

This is combined with Lactobacillus Ferments, working alongside it to help reinforce the scalp’s natural microbiome an often overlooked factor in long-term scalp health.

 

From there, the formula is built to do something most products don’t consider: create a consistent environment at the scalp where hair isn’t constantly under stress. 

Try it now

Targeting the root cause's

At the core of the formula is a high concentration of Saccharomyces Ferment Filtrate (20,000 ppm), a fermented ingredient commonly used in advanced Korean scalp care to help maintain a balanced scalp environment and support the conditions needed for healthy hair growth.

 

This is combined with Lactobacillus Ferments, working alongside it to help reinforce the scalp’s natural microbiome an often overlooked factor in long-term scalp health.

 

From there, the formula is built to do something most products don’t consider: create a consistent environment at the scalp where hair isn’t constantly under stress. 

Try it now

consumer studied. independently tested.

Based on structured consumer testing and real user feedback during consistent daily use. All results reflect perceived outcomes after 4 - 8 weeks of application.

Reduced Shedding

94%

Reported less hair fall during washing and brushing within the first 4–6 weeks of use.

Improved Scalp Comfort

84%

Experienced a calmer, less irritated scalp with continued daily application.

Visible
Density 

79%

Noticed early signs of improved fullness and reduced visible thinning over time.

Healthier 
Hair

74%

Reported hair looking stronger, thicker, and more resilient in everyday styling.

Results based on a controlled consumer use study. 
Individual results may vary.

consumer studied. independently tested.

Based on structured consumer testing and real user feedback during consistent daily use. All results reflect perceived outcomes after 4 - 8 weeks of application.

Reduced Shedding

94%

Reported less hair fall during washing and brushing within the first 4–6 weeks of use.

Improved Scalp Comfort

84%

Experienced a calmer, less irritated scalp with continued daily application.

Visible Density 

79%

Noticed early signs of improved fullness and reduced visible thinning over time.

Healthier Hair

74%

Reported hair looking stronger, thicker, and more resilient in everyday styling.

Results based on a controlled consumer use study. Individual results may vary.

The Science Behind the Korean scalp success

In advanced Korean scalp care, the focus isn’t on the hair itself it’s on the scalp environment beneath it. When that environment is supported consistently, the hair cycle is better able to function as intended over time.

 

This is the principle behind Heeyul: simple daily application, focused exactly where it matters most.

From Korean manufacturer

directly your home

GMP-certified Korean production

Manufactured under strict quality standards.

60-day guarantee

No questions asked.

  • From Korean manufacturer

    to your home

  • 60-day guarantee

    No questions asked.

  • GMP-certified Korean production

    Manufactured under strict quality standards.

What Makes Heeyul Bio® Different?

1 Day
90 Days

Consumer tested results

Developed and refined through structured user testing, focusing on real-world outcomes like reduced shedding, scalp comfort, and visible hair density improvements over consistent daily use.

Balanced Formulation

Lightweight, fast-absorbing formulas designed to fit seamlessly into your routine. No grease, no buildup, no disruption to styling.

Made for sensitive scalps

Formulated with scalp tolerance in mind, using gentle actives and fermentation-based ingredients commonly used in advanced Korean scalp care to support balance and long-term use.

Try Heeyul Bio

What Makes Heeyul Bio® Different?

Consumer tested results

Developed and refined through structured user testing, focusing on real-world outcomes like reduced shedding, scalp comfort, and visible hair density improvements over consistent daily use.

Balanced Formulation

Lightweight, fast-absorbing formulas designed to fit seamlessly into your routine. No grease, no buildup, no disruption to styling.

Made for sensitive scalps

Formulated with scalp tolerance in mind, using gentle actives and fermentation-based ingredients commonly used in advanced Korean scalp care to support balance and long-term use.

Try Heeyul Bio
1 Day
90 Days

4.7/5 based on 50,000+ bottles sold

what some of our satisfied customers are saying

reviews reflect individual experiences. individual results may vary. not intended to diagnose, treat, cure, or prevent any disease.
  

4.7/5 based on 50,000+ bottles sold

what some of our satisfied customers are saying

reviews reflect individual experiences. individual results may vary. not intended to diagnose, treat, cure, or prevent any disease.