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🏆 PEOPLE's Beauty Awards Winner: Saisei Treatment Essence

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SAISEI Collection

Shampoo ・ Conditioner ・ treatment essence

Return to you with this three-step routine that combats the root causes of visible signs of aging in our hair.

Thicker, Fuller Looking Hair in 90 Days

78% agreed that Saisei helps visibly improve hair density and that hair looks and feels thicker after 90 days of use.

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Shared Ingredients

used across the full SAISEI Collection

Rosebay Extract

Helps soothe the scalp for a healthier scalp microbiome.

Black Spruce Bark Extract

A sustainable upcycled extract that helpsprotect the scalp and hair color.

Apple Extract

Helps preserve natural color and thickness while reducing shedding.

Bamboo Extract

Promotes stronger, healthier hair growth, while defending against free radicals.

Alpine Rose Extract

Helps combat hair aging by protecting hair protein.

What’s Being Said on Social

FAQs

What's all in the SAISEI Collection?

SAISEI SHAMPOO
11.5 fl oz | 340 mL
water, sodium lauroyl methylaminopropionate, cocamidopropyl betaine, lauramide dea, tea-cocoyl glutamate, lauramidopropyl betaine, sodium methyl cocoyl taurate, cocamide methyl mea, glutamic acid, picea mariana bark extract, butylene glycol, sodium pca, 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, polyquaternium-10, polyquaternium-50, argania spinosa kernel oil, sclerocarya birrea seed oil, simmondsia chinensis (jojoba) seed oil, sodium chloride, dextran, xanthan gum, argan oil polyglyceryl-6 esters, peg-160 sorbitan triisostearate, peg-7 glyceryl cocoate, lecithin, benzotriazolyl dodecyl p-cresol, dipropylene glycol, citric acid, sodium citrate, lactic acid, sodium metabisulfite, etidronic acid, pentasodium pentetate, phenoxyethanol, sodium benzoate, fragrance, ci 42090, ci 60730, caramel


SAISEI CONDITIONER
11.5 fl oz | 340 mL
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, dextran, 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

SAISEI ESSENCE
1.7 fl oz | 50 mL |
water, alcohol, butylene glycol, glycerin, malus domestica fruit cell culture extract, epilobium angustifolium flower/leaf/stem extract, phyllostachys pubescens meristem cell lysate, acetyl tetrapeptide-3, trifolium pratense (clover) flower extract, palmitoyl tetrapeptide-20, trifluoroacetyl tripeptide-2, glutamic acid, sodium pca, picea mariana bark extract, eisenia arborea extract, porphyra yezoensis extract, rhododendron ferrugineum leaf cell culture extract, isomalt, argania spinosa kernel oil, sclerocarya birrea seed oil, simmondsia chinensis (jojoba) seed oil, dextran, menthol, acrylates/c10-30 alkyl acrylate crosspolymer, xanthan gum, polysorbate 20, lecithin, peg-60 hydrogenated castor oil, sodium hydroxide, lactic acid, sodium metabisulfite, tetrasodium etidronate, etidronic acid, phenoxyethanol

What ingredients are they free from?

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

Where are the products made?

The SAISEI Collection is made in Japan.

What do they smell like?

SHAMPOO + CONDITIONER
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


SAISEI ESSENCE
Is fragrance-free

Does this work on color-treated hair? Can I use this product and still regularly dye my hair?

Results from the Saisei Collection will be most noticeable on hair that has not recently been color-treated, so we do not recommend continuing to dye your hair while using Saisei. Please keep in mind that the collection was not designed to be used on continuously color-treated hair.

How well does this work in conjunction with other hair products? What can be used together?

This conditioner can be easily incorporated into your existing hair care routine with a variety of products. We recommend using it with the rest of the Saisei Collection for best results.

How do I use these?

STEP ONE:
Saisei Stress Defense Amino Acid Shampoo
Lather into wet hair and rinse.

STEP TWO:
Saisei Restoring Therapy Conditioner
Massage into wet hair, ensuring product is evenly applied. Leave in for 3 to 5 minutes before rinsing.

STEP THREE:
Saisei Biomimetic Peptide Treatment Essence
After showering, towel-dry and create parts in hair to apply the essence directly to the scalp. Massage in and do not rinse out. Reapply treatment essence on no-wash days to return natural thickness, color, and vibrancy.

PRO TIP: You can use our Saisei Treatment Essence with any shampoo + conditioner of your choice. Although, we recommend using our full SAISEI Collection for best results.

Is this product pregnancy/postpartum safe?

This product can be used during pregnancy or postpartum. For specific concerns, please speak with your primary care physician before using.

I don’t have gray hair yet, but I’m interested in the other benefits this product provides. Can I use it?

Yes, these products can be used to support overall hair health. For best results, we recommend using the full Saisei Collection as a preventative treatment.

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