Leave-In Conditioner

Leave-In Conditioner

Smooth, frizz-free hair. Hydration you feel. Weight you don't.

$48
$48
TESTED FOR HORMONE SAFETY83% LESS BREAKAGE¹

Made for hair that changes as hormones shift

83% less hair breakage¹

62% reduction in frizz²

For hair that’s turned dry and fragile as hormones shift.

 

Does your hair snap more easily, frizz more, or feel drier than it used to? When hormones shift, and estrogen falls in particular, hair can grow back finer, with less volume and a different texture. This leave-in is made for exactly that.

 

Your hormones are already changing. Your hair care shouldn’t add to it. Every formula is Tested for Hormone Safety.

 

A weightless leave-in that cuts breakage, tames frizz and mends split ends, with no silicones. Use it on damp or dry hair, from mid-lengths to ends.

 

Through every stage

 

  • Perimenopause: when hair starts feeling drier and frizzier.

  • Menopause: when hair snaps more easily.

  • Postmenopause: when hair grows back finer.

 

Also available in a travel size, or as part of the Essential Kit and Styling Kit.

 

Made in Sweden | Tested for Hormone Safety | Cruelty-free | Free from Silicones | Dermatologically Tested

 

¹ Based on instrumental testing of the ingredient on bleached hair fibers after 10,000 brushing strokes versus untreated hair under controlled laboratory conditions. Results may vary depending on hair type and formulation.
² Based on instrumental testing of the ingredient on treated hair fibers exposed to 80% relative humidity for 8 hours versus untreated control. Results may vary depending on hair type and formulation.
³ Based on instrumental hair-fiber analysis of the ingredient versus argan oil under controlled laboratory conditions. “Mended” refers to measured reduction in split-end angle according to the study grading scale. Results may vary.

Benefits

  • Reduces hair breakage
  • Reduces frizz
  • Mends split ends

Perfect For

Frizzy Hair Dry hair Menopause

Algapur

Algapur is a sustainable and biodegradable microalgae. Derived via fermentation it offers a non-greasy and nutrient-rich alternative to silicone or mineral oils. It smoothes and softens hair without leaving a heavy feel, reducing frizz.

Hydrolyzed Quinoa

Hydrolyzed Quinoa is a super-ingredient that penetrate the hair shaft to repair damage and strengthen the hair from within. It forms a protective film to defend against environmental stressors like heat and sun exposure, which helps reduce breakage and split ends and gives a natural UV & Heat Protection.

Crambe Seed Oil

Crambe Seed Oil is intensely hydrating but extremely light in weight and texture which makes this a perfect option for thin, fine or even greasy hair. Crambe Seed Oil is rich in phytosterols that improves shine and elasticity by up to 191% when used over time.

Signature scent

Our signature scent took 1.5 years to develop with a sustainable perfumer in Paris, built around three goals: it had to smell incredible, contain zero endocrine-disrupting ingredients, and work on sensitive skin. It’s a blend of natural and synthetic molecules, each tested by toxicologists for hormone safety and dermatologists for sensitive skin, chosen for both human and environmental safety. Most brands hide behind the word “parfum” so they never have to disclose what’s actually in the bottle. We do the opposite: full ingredient disclosure is on our website, because we’re proud of the work that went into this formula.

Every ingredient, fully disclosed. Not "parfum."
Triethyl Citrate, Methyl Dihydrojasmonate, Linalool, Octahydro-Methoxy-Tetramethyl-Methanoazulene, Citrus Aurantium Bergamia Fruit Oil, Tetrahydro-Methyl-(Methylpropyl)-Pyran-4-Ol, Linalyl Acetate, Citrus Limon Peel Oil, Ethyl Linalool, Styrallyl Acetate, 1,1-Dimethoxy-2,2,5-Trimethyl-4-Hexene, Juniperus Virginiana Wood Oil, Ethyl Methyl Butyl Ketoxime, Methyl Decenol, Ethyl Trimethylcyclopentene Butenol, Vetiveryl Acetate, (Z)-Hex-3-en-1-ol, cis-3-Hexenyl Acetate, 2,4-Dimethyl-3-Cyclohexene Carboxaldehyde, Hexyl Acetate, Gamma-Nonalactone, Ethyl Maltol
Safe for our planet
Hormone-safe
Made in Sweden
View full details

Lab-tested results

Works harder than it feels

  1. 83%Less hair breakage

  2. 62%Reduction in frizz

  3. +10%More split ends mended vs. argan oil

Works harder than it feels
Algapur
Algapur

Algapur

Algapur is a sustainable and biodegradable microalgae. Derived via fermentation it offers a non-greasy and nutrient-rich alternative to silicone or mineral oils. It smoothes and softens hair without leaving a heavy feel, reducing frizz.

Hydrolyzed Quinoa
Hydrolyzed Quinoa

Hydrolyzed Quinoa

Hydrolyzed Quinoa is a super-ingredient that penetrate the hair shaft to repair damage and strengthen the hair from within. It forms a protective film to defend against environmental stressors like heat and sun exposure, which helps reduce breakage and split ends and gives a natural UV & Heat Protection.

Crambe Seed Oil
Crambe Seed Oil

Crambe Seed Oil

Crambe Seed Oil is intensely hydrating but extremely light in weight and texture which makes this a perfect option for thin, fine or even greasy hair. Crambe Seed Oil is rich in phytosterols that improves shine and elasticity by up to 191% when used over time.

How to use

Three ways, no rinse

  1. On damp hair

    01

    On damp hair

    Work a coin-sized amount through damp lengths to detangle and smooth.

  2. On dry hair

    02

    On dry hair

    Smooth over dry ends to tame flyaways between washes.

  3. Into your routine

    03

    Into your routine

    Layer over the Density series to seal in moisture and softness.

UNDER YOUR SKINProducts are
Tested for Hormone Safety
Dermatologist tested
No parabens, silicones or sulfates
Plant-powered formulas
Vegan & cruelty-free
Made in Sweden

" I noticed a difference after just two weeks. My hair feels fuller and my scalp feels cleaner. "

" Over 60,000 in Sweden have trusted Under Your Skin to support visibly fuller, thicker hair. "

"These products harness plant stem cells and turmeric, resulting in thicker, healthier hair."

Less hair fall-out in just two weeks!

" The Density Drops help prevent hair loss and improve volume for a fuller head of hair. "

" The clean, dermatologist tested, hormone-safe system is finally available in the U.S. "

Under Your Skin and RISE have gone beyond clean beauty’s ingredient bans.

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Leave-In Conditioner
Leave-In Conditioner
$48
$48

Questions you might have.

What is the Leave In Conditioner designed for?
This leave-in conditioner is designed to support smoother, more manageable hair and help reduce the look of frizz and breakage.
How do I use it?
Apply 1–2 pumps to damp or dry hair, focusing on mid-lengths and ends. For flyaways, smooth a small amount over roots. Do not rinse.
Do I rinse it out?
No—this is a leave-on product.
What “breakage” result is referenced?
It references instrumental testing of an ingredient on bleached hair fibers after brushing versus untreated hair under controlled conditions. Results may vary by hair type and formulation.
What “frizz” result is referenced?
It references instrumental testing on treated hair fibers exposed to high humidity versus control under controlled conditions. Results may vary.
What does “split ends mended” mean?
It refers to measured changes in split-end angle in hair-fiber analysis under controlled conditions, not a permanent repair of hair structure.
Can I use it daily?
Yes. Use as needed for smoothness, detangling, and frizz control.
Is it good for flyaways?
Yes. Use a very small amount over roots to smooth flyaways without heaviness.
Is it good for heat styling?
It can be used as part of a routine that supports smoother styling. Use heat tools at appropriate temperatures and avoid overuse.
Where is it made?
It is made in Sweden.
Will it weigh hair down?
Start with 1 pump for fine hair and focus on lengths/ends. Add only as needed.
Can I use this during postpartum changes?
Yes. Many people focus on gentle detangling and breakage support during postpartum changes.
Can I use this during menopause-related dryness?
Yes. Many people add leave-in hydration when hair feels drier during hormonal transitions.
Can I use it with the Density routine?
Yes. Keep scalp drops focused on the scalp, and use leave-in mainly on lengths and ends.
When will I notice smoother hair?
Many people notice smoother feel right away, with better manageability when used consistently.

Overall rating: 4.9117646 / 5 from 68 reviews.

AI Generated Review Summary

This silicone-free leave-in conditioner strengthens hair fibers, reducing breakage, frizz, and split ends. Customers praise its smooth texture and clean feel, along with its wonderful scent.

Summary topics

  • Customer Satisfaction (34%): Many customers loved the product, describing it as amazing, great, top, and very good.
  • Scent (73%): A substantial number of customers remarked that the product smells amazing and has a wonderful and great scent.
  • Hair Texture (17%): A significant number of customers remarked that the hair feels incredibly smooth and clean after using the product.
  • Hair Feel (21%): Many customers brought up that the product feels amazing and leaves a nice feeling in the hair.

Review topics: ["feels","texture","hair","smells","products","conditioner","becomes"].

Review highlights

  • "The product makes your hair feel incredibly smooth and clean! The ends really look much fresher!" — Moa
  • "Hair feels fresh and alive." — Carolina J.
  • "Fantastic product with wonderful scent" — Anne

Reviews

I love this product! I

"I love this product! I use it everyday and it goes on so nicely and smells fantastic. It goes into hair strands and doesn’t weigh down my hair or feel greasy when using it. Love love love! I tell everyone to buy it. Highly recommend."

— Catherine B. (5/5)

Keeps my blowouts lasting all week long

"I LOVE this product! I put a little bit on the ends of my hair each morning. It keeps my blowout looking fresh for the entire week and smells amazing!"

— Kate I. (5/5)

I love this product!

"Before purchasing this product, my curly hair was always getting dry and unruly during the day, especially with summer humidity. This leave in conditioner helps my natural curls keep their shape and leaves my hair feeling soft. Bonus that is smells so good that I look forward to putting it on every morning!"

— Maggie O. (5/5)

Smooth Without the Weight

"I have noticed such a difference in my hair since I started using this leave in conditioner. My hair feels softer, smoother with less frizz and a healthy shine. It provides lasting moisture without weighing my hair down! I am using on both wet and dry hair and the subtle scent is amazing!"

— Lee A. (5/5)

Incredible product

"Incredibly moisturizing for my long hair! Very light in texture so nothing weighs it down. Hair feels smooth right away! And the scent is amazing, feels very luxurious!"

— Lisa K. (5/5)

Pleasantly surprised

"The product has gentle texture, pleasant smell, and not sticky on the hair. I consider a product a really good one for leave on."

— Oksana (5/5)

Love it!

"Beautiful and with a wonderful smell. Hair looks healthy and feels freshly cut."

— Matilda L. (5/5)

Fantastic product with wonderful scent

"Nice results after just a few days. Will definitely become a favorite!"

— Anne (5/5)

Lovely!

"Love the scent, so woody and fresh!! Hair feels fresh and alive."

— Carolina J. (5/5)

Smells so good!!

"The product smells super good and you don't get any frizz at all"

— Ida (5/5)

Q&A