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Kiseki Miracle Molecular Repair & Shine Ritual

£44.00

Out of stock

Mainichi Scalp Balancing Sake Rinse

£16.00

Out of stock
Bamboo comb with 'Nature Lab' branding on a white background

Mainichi Bamboo Treatment Comb

£8.00

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Saisei Restoring Therapy Conditioner

£17.00
Shipping calculated at checkout.

Renewal at the root.
A scalp-first amino acid shampoo designed to support stronger, fuller-looking hair while helping visibly reduce grays and restore natural color vibrancy over time.

Designed for daily use, this formula improves resilience, softness, and manageability while supporting scalp health and visible density.

Delivers as soon as Friday, June 19
BENEFITS
  • Supports stronger, fuller-looking hair
  • Nourishes and detangles without weight
  • Improves softness and resilience
  • Helps address visible signs of hair aging
PERFECT FOR

Hair in the beginning to moderate stages of the graying or thinning processes.

All hair textures.

11.5 fl oz / 340 ml

SMELLS LIKE

A refreshing and elegant floral green fragrance inspired by Japanese iris. Evokes a rejuvenating breeze during a morning garden stroll in Japan. Centered around violet, with accents of celery, petitgrain, and davana, blended with a floral bouquet of mimosa, lily of the valley, and jasmine from France.

TOP NOTES
Celery, davana, petitgrain, violet leaves
MIDDLE NOTES
Muguet (lily of the valley), mimosa, French jasmine, cassis
BASE NOTES
Cinnamon, iris, cedarwood, musk

INGREDIENTS

SAISEI CONDITIONER:
Water, ethylhexyl palmitate, cetearyl alcohol, steartrimonium chloride, glutamic acid, butylene glycol, sodium pca, picea mariana bark extract, malus domestica fruit cell culture extract, epilobium angustifolium flower/leaf/stem extract, phyllostachys pubescens meristem cell lysate, rhododendron ferrugineum leaf cell culture extract, palmitoyl tetrapeptide-20, acetyl tetrapeptide-3, trifolium pratense (clover) flower extract, trifluoroacetyl tripeptide-2, glycerin, isomalt, argania spinosa kernel oil, sclerocarya birrea seed oil, simmondsia chinensis (jojoba) seed oil, hydrogenated castor oil isostearate, dextrin, hydroxyethylcellulose, xanthan gum, lecithin, dicocodimonium chloride, behenyl alcohol, benzotriazolyl dodecyl p-cresol, isopropyl alcohol, lactic acid, sodium metabisulfite, tetrasodium edta, etidronic acid, phenoxyethanol, fragrance, ci 60730 (ext. violet 2), ci 42090, ci 19140, caramel

Free U.S.* Shipping $30+

Free 30 Days Returns

Always Cruelty Free

We Give 1% Back For Every Sale

Complete your ritual:

Saisei Stress Defense Amino Acid Shampoo

£17.00

Out of stock

Saisei Biomimetic Peptide Treatment Essence

£35.00

Out of stock

Kiseki Molecular Repair Leave-In Hair Masque

£28.00

Out of stock

Saisei Restoring Therapy Conditioner

£17.00

•

Your destination for scalp and hair health

•

Proven results through J-Beauty routines

•

Derived from nature, backed by science

HOW TO

After shampooing, apply to wet hair from ends to roots. Rinse thoroughly.

Pro Tip: Saisei is designed as a 3-step renewal system—Shampoo, Conditioner, and Treatment Essence. For optimal density support and visible renewal, use the full Saisei Stress Defense Line consistently.

Tell Me More

Treat your hair to regular relaxation sessions with the Saisei Restoring Therapy Conditioner. This soothing formula can be used daily, and is lightweight enough for use on the scalp without burdening strands with residue. 

Created with many shared core ingredients, the Saisei Collection’s shampoo and conditioner help revive and soothe the scalp to support the rejuvenating effects of the Saisei Biomimetic Peptide Treatment Essence. Our fruit seed oil complex conditions and nourishes tresses without weighing them down. Antioxidant-rich plant-based ingredients selected for their resilient, revitalizing, and strengthening properties in nature help defend hair from environmental damage due to UV exposure and free radicals. Hair is left nourished and more protected against stress factors, primed for healthier future growth.

Designed to be used in a daily routine with the Saisei Stress Defense Amino Acid Shampoo and Saisei Biomimetic Peptide Treatment Essence.

11.5 FL OZ / 340 mL

Full Ingredient List

SAISEI CONDITIONER:
Water, ethylhexyl palmitate, cetearyl alcohol, steartrimonium chloride, glutamic acid, butylene glycol, sodium pca, picea mariana bark extract, malus domestica fruit cell culture extract, epilobium angustifolium flower/leaf/stem extract, phyllostachys pubescens meristem cell lysate, rhododendron ferrugineum leaf cell culture extract, palmitoyl tetrapeptide-20, acetyl tetrapeptide-3, trifolium pratense (clover) flower extract, trifluoroacetyl tripeptide-2, glycerin, isomalt, argania spinosa kernel oil, sclerocarya birrea seed oil, simmondsia chinensis (jojoba) seed oil, hydrogenated castor oil isostearate, dextrin, hydroxyethylcellulose, xanthan gum, lecithin, dicocodimonium chloride, behenyl alcohol, benzotriazolyl dodecyl p-cresol, isopropyl alcohol, lactic acid, sodium metabisulfite, tetrasodium edta, etidronic acid, phenoxyethanol, fragrance, ci 60730 (ext. violet 2), ci 42090, ci 19140, caramel

Inside The Formula

Key Ingredients

MARULA, ARGAN + JOJOBA OIL
Our fruit seed oil complex softens and smooths strands weightlessly. Rich in vitamins and omega fatty acids to support hair health.

BLACK SPRUCE BARK EXTRACT
A sustainable upcycled extract that helps repair damage and protect the scalp and hair color from oxidation and environmental stressors.

APPLE EXTRACT
Soothes and hydrates the scalp with supercharged antioxidants. Helps preserve natural color and thickness while reducing shedding.


Formulated Without

Parabens, Sulfates, Phthalates, Over 1,300 ingredients that are banned in the EU, Animal Testing, Silicone, Animal Derived Ingredients


What is J-Beauty?

Efficacious, minimalistic treatments designed meticulously with trusted Japanese heritage, ingredients and technological innovation.

Developed with a distinctive Japanese approach: relentless pursuit of excellence in refining the optimal combination of time-tested tradition and science's latest discoveries.

NatureLab.TOKYO is Japanese beauty.

Awards + Press

PRESS

Well+Good, 2024

The Tease, 2024

Trend Hunter, 2024

Shipping + Returns

Contiguous U.S. Shipping

Free shipping with orders $60+. We don't currently ship outside of the United States. Stay tuned for more updates.

Order Tracking

Tracking numbers are automatically sent as soon as your order is packed. Please check your junk folder if you do not receive one 72 hours after placing your order.

Get In Touch

If you have any questions about your order please email us at help@naturelab.com. Our customer service is available Monday through Friday from 8am until 12pm pst.

Customer Reviews

Overall rating: 5.0 / 5 from 6 reviews.

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Reviews

You won't regret this purchase

"Leaves your hair extremely soft and manageable. The amazing scent is just an added bonus. Out of the three different types I have tried, this one is definitely the most heaven "scent"."

— Crystal C. (5/5)

Works great

"Makes my hair feel great"

— Yvonne B. (5/5)

I like it!

"I love the fact I can use the conditioner on my entire scalp, not just my ends. I was pleasantly surprised at how soft my hair felt afterwards. The conditioner is a much thicker texture but it’s worked great for my hair so far!"

— Samantha P. (5/5)

Love

"Beautiful scent !"

— Aiko F. (5/5)

My favorite

"Love this conditioner!"

— Brooke H. (5/5)

Saisei products

"Great product!"

— denise f. (5/5)

Q&A
Why J-Beauty Hair Rituals Deserve a Spot in Your Routine

LEARN MORE ON OUR BLOG:

Why J-Beauty Hair Rituals Deserve a Spot in Your Routine

J-Beauty is more than hair care—it’s a mindful ritual. With NatureLab.TOKYO, everyday routines become moments of balance, beauty, and lasting results.

Read more