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Highlights
Summary
The Saisei Stress Defense Amino Acid Shampoo is a gentle, scalp-first cleanser designed to support stronger, fuller-looking hair over time. This lightweight formula cleanses without stripping while helping reinforce hair at the root and support a healthier scalp environment.
Benefits
- Gently cleanses while supporting scalp health
- Helps hair look stronger, fuller, and healthier over time
- Supports the appearance of density at the root
- Designed for daily or frequent use
- Easy, effective, J-Beauty Rituals
- Scientific formulas, powered by nature
- Japanese premium ingredients | Made in Japan
- Rosebay extract help soothe the scalp to help reduce hair loss
- Black spruce bark extract increases protection against oxidation
- Clover extract helps address visible signs of hair aging
Scent Type
- A refreshing, elegant floral green scent inspired by Japanese iris.
Research Results
- In a consumer perception study in the US where 38 users from ages 26-60 used the Saisei Shampoo, Conditioner, and Essence for 90 days:
- 84% noticed an improvement in healthier hair growth
- 84% agreed that their scalp feels healthier than ever
- 84% agreed that hair feels significantly stronger and more resilient
- 82% agreed that their natural hair color looks more vibrant
- 79% agreed that the collection helps visibly tone down grays
- 79% agreed that the collection reduces the appearance of gray hair
- 76% agreed that the collection helps visibly improve hair density
- 76% agreed that hair looks and feels more voluminous
Item 2648877
Lather into wet hair from roots to ends. Rinse thoroughly and follow with the Saisei Restoring Therapy Conditioner.
Pro Tip: Saisei is designed as a 3-piece system: Shampoo, Conditioner, and Treatment Essence. For best results, optimal hair density building and repigmentation, try the full Saisei Renewal Line.
Aqua (Water, Eau), Sodium Lauroyl Methylaminopropionate, Sodium Methyl Cocoyl Taurate, Lauryl Betaine, Lauramidopropyl Betaine, Sodium Chloride, Palmitoyl Tetrapeptide-20, Acetyl Tetrapeptide-3,Tripeptide-2, Picea Mariana Bark Extract, Trifolium Pratense (Clover) Flower Extract, Malus Domestica Fruit Cell Culture Extract, Epilobium Angustifolium Flower/Leaf/Stem Extract, Phyllostachys Pubescens Meristem Cell Lysate, Rhododendron Ferrugineum Leaf Cell Culture Extract, Argania Spinosa Kernel Oil, Sclerocarya Birrea Seed Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Polyquaternium-50, Polyquaternium-10, Cocamidopropyl Betaine, Argan Oil Polyglyceryl-6 Esters, PEG-160 Sorbitan Triisostearate, Polysorbate 20, PEG-7 Glyceryl Cocoate, Lecithin, Dextran, Butylene Glycol, Sodium PCA, Glutamic Acid, Glycerin, Isomalt, Xanthan Gum, Parfum (Fragrance), Benzotriazolyl Dodecyl p-Cresol, Pentasodium Pentetate, Lactic Acid, Dipropylene Glycol, Citric Acid, Sodium Citrate, Sodium Metabisulfite, Etidronic Acid, Phenoxyethanol, Sodium Benzoate, Citrus Aurantium Peel Oil, Hexamethylindanopyran, Hexyl Cinnamal, Linalool, Caramel, CI 42090 (Blue 1), CI 60730 (Ext. Violet 2)
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Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
5 results
Fine 3A Hair
I have a lot of hair, but my density is on the finer side, and my curl pattern is around 2c/3a. This shampoo isn't marketed as moisturizing but I find it to be too moisturizing. Because of that, I can't use it as a standalone shampoo/cleanser. I use quite a bit of gel/mousse/foam and wash my hair about twice a week. I prefer a squeaky clean scalp, and this shampoo doesn't give me that on its own. To finish it, I've been using it for my second wash. I'll use a clarifying shampoo first to thoroughly cleanse my scalp, then following up with this shampoo. Overall, it's a very moisturizing shampoo for me and I would not repurchase.
Smells lovely and lathers
Reviewed at

Smells lovely and lathers well but my hair felt less than ideal after shampooing twice.
Shine
Reviewed at

This series gives my hair shine :)
My favorite
Reviewed at

Love this line. Been a staple in my hair routine for years
Love it
Reviewed at

I love the smell, the way my hair feels afterwards along with its conditioner to match. I was pleasantly surprised. I always use NatureLabs Repair shampoo because I love the way my hair shines and feels after every shower, but this is a close second to me. It will be added to my favorites to buy regularly