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Syoss Intense Keratin Deep Caring Shampoo
Syoss

Intense Keratin Deep Caring Shampoo

Decent 3.6 / 5

A mainstream fragranced strengthening shampoo with a verified ingredient list, best viewed as a cleansing-and-smoothing product rather than a true repair treatment. It is plausible for breakage-prone hair, but the fragrance and sulfate base make it a less cautious choice for sensitive or very dry hair.

Hair & scalp

How it’s judged

Scored for hair & scalp — based on what its ingredients contribute.

What it may help with

Cleansing i3.5 / 4

Whether it helps remove dirt, oil, sweat, product residue, or buildup from hair or scalp — surfactants and cleansing agents score here.

From Sodium Laureth Sulfate, Cocamidopropyl Betaine, Sodium Chloride, PEG-7 Glyceryl Cocoate

Conditioning i3.0 / 4

Whether it makes hair feel softer, smoother, or more manageable — emollients, silicones, cationic polymers, and oils.

From Amodimethicone, HYDROLYZED KERATIN, Guar Hydroxypropyltrimonium Chloride, Apricot Kernel Oil

Detangling i2.5 / 4

Whether it reduces friction so hair is easier to comb or brush.

From Amodimethicone, Guar Hydroxypropyltrimonium Chloride, HYDROLYZED KERATIN, Dimethicone

Shine i2.0 / 4

Whether it increases gloss, light reflection, or a smoother-looking hair surface.

From Amodimethicone, Apricot Kernel Oil, HYDROLYZED KERATIN, Dimethicone

Anti frizz i1.5 / 4

Whether it helps reduce frizz, flyaways, humidity effects, or rough hair appearance.

From Dimethicone, Citric Acid

Things to watch

Sensitization i3.0 / 4

Risk of allergic contact dermatitis or immune-based scalp reactions — fragrance, preservatives, hair dyes, and botanicals may score here.

From Fragrance, Cocamidopropyl Betaine, Tetramethyl Acetyloctahydronaphthalenes, Linalool

Scalp irritation i2.5 / 4

Risk of itching, burning, redness, dryness, or discomfort on the scalp.

From Fragrance, Sodium Laureth Sulfate, Sodium Chloride, Tetramethyl Acetyloctahydronaphthalenes

Hair dryness i1.5 / 4

Whether it may make hair fibers feel dry, rough, brittle, or less flexible.

From Sodium Chloride, Citric Acid

Scalp dryness i1.5 / 4

Whether it may dry out the scalp, strip oils, or worsen flaking and tightness.

From Sodium Chloride, Citric Acid

Buildup i0.5 / 4

Whether it can accumulate on hair or scalp over time — causing heaviness, dullness, residue, or reduced volume.

About this product

A rinse-off hair shampoo marketed for fragile, breakage-prone hair, with manufacturer/retailer evidence confirming Syoss Intense Keratin Deep Caring Shampoo and a matching INCI list from Kruidvat. The formula combines sulfate cleansing with hydrolyzed keratin, silicones, and conditioning agents, so it should cleanse and smooth hair, but the fragrance load and stronger surfactant base may be less suitable for sensitive scalps or very dry hair.

Good signs
  • Includes hydrolyzed keratin plus conditioning silicones and polymers, which supports slip and temporary strengthening feel.
  • Formula is designed for fragile hair and is consistent with a smoothing, breakage-reduction shampoo routine.
  • Contains some emollient/supporting agents that can help reduce rough feel after cleansing.
Watch-outs
  • Contains fragrance plus listed fragrance allergens, which increases irritation risk for scent-sensitive users.
  • Sulfate-based cleansing can be too strong for very dry or fragile lengths if used too often.
  • Marketing emphasizes keratin strength, but the formula still relies on rinse-off conditioning effects rather than true repair.
Best for
  • Fragile or breakage-prone hair that tolerates fragranced shampoos.
  • Users wanting a smoothing shampoo with a stronger cleanse.
  • Hair that benefits from silicone-based detangling and softness.
How to use it
  • Use as a scalp and hair cleanser, then rinse thoroughly.
  • Follow with conditioner if lengths are dry or damaged.
  • Patch testing is reasonable for fragrance-sensitive scalps.

What people say online

Summarised from public reviews across the web — subjective experience, not our formula assessment.

Real user feedback was not specifically gathered for this exact product, so no reliable review pattern can be summarized.

Aggregated from publicly available reviews. SpottyLabs does not sell this product.

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