Olaplex
No4 CurlHydrating Curl Shampoo250 ml
Sulfate-free
from€26.60
€10.64 / 100 ml
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No4 Fine Bond Maintenance Shampoo
Hair product · no skin rating
- No drying alcohol
- Silicone-free
Buy from a trusted store
- LY
Lyko
Out of stock
Out of stock€24.50€17.15€17.15 / 100 ml
Prices come from Finnish online stores and are shown in euros. Cocopanda delivers only within mainland Finland; Lyko's delivery terms also list Sweden, Norway, Denmark, Poland, the Netherlands, Austria, and Germany. Neither delivers to the US or the UK.
Olaplex No4 Fine Bond Maintenance Shampoo is a shampoo (100 ml). The ingredient list has 52 ingredients, including panthenol (B5), rice (Oryza sativa), and hyaluronic acid. The product is silicone-free and sulfate-free. The product contains no drying alcohol. One retailer carries it right now, at €17.15.
- Product type
- Shampoo
- Size
- 100 ml
- Origin
- Western
Source: store product page · Updated 2026-09-12
Ingredient analysis
Contains one flagged ingredient group. Key ingredient: Hyaluronic acid. This reading covers ingredient groups, not suitability for hair or scalp.
Flagged ingredient groups
- Fragrance4 ingredients
The product contains fragrance or declared fragrance allergens.
- Benzyl Alcohol#42
- Hexyl Cinnamal#48
- Limonene#49
- Citral#50
Key ingredients
A humectant that binds water.
A humectant often used in formulations for sensitive skin.
Ingredients obtained from rice: extract, rice water and bran oil in hydrating formulations, starch and bran wax to adjust texture. A long-established raw material in Korean and Japanese skincare.
This is a hair product. We read the same ingredient groups as on a skincare product — fragrance, sulfates, silicones and drying alcohols — but we publish no acne-prone rating and no judgment about whose hair or scalp it suits. An ingredient list cannot tell you that.
Confidence: medium · v2026.09.3
This assessment is read from the ingredient list and is not medical advice. It makes no promise about acne. Individual skin reactions vary.
Read how we classify productsDryingness index
0/ 100Practically non-drying
The most drying ingredients
- Sodium Chloride(position 13)
Ingredients that lower the score
- Coco-Glucoside(position 4)
- Glycerin(position 8)
- Guar Hydroxypropyltrimonium Chloride(position 17)
- Panthenol(position 22)
- Polyquaternium-7(position 24)
- Propylene Glycol(position 33)
Why this number
Dryingness 0/100 — practically non-drying. The reading comes from the ingredient list and its order, not from a measurement. The largest additions: Sodium Chloride (position 13). Pulling the score down: Coco-Glucoside (position 4), Glycerin (position 8), Guar Hydroxypropyltrimonium Chloride (position 17).
Computed from the ingredient list · v2026.08.1
The number is computed from the declared ingredient list and its order. A label does not state concentrations, so this is a reading of the formula — not a prediction of how the product feels in use.
How the dryingness index is calculatedFull ingredient list
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11Bis-AminopropylDiglycol Dimaleate
- 12
- 13
- 14
- 15
- 16Cocamide MIPA
- 17
- 18
- 19
- 20Polyimide-1
- 21
- 22
- 23
- 24
- 25Cetrimonium Chloride
- 26
- 27
- 28Hydrolyzed Quinoa
- 29
- 30Sarcosine
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43Tetrasodium Glutamate Diacetate
- 44PotassiumSorbate
- 45
- 46
- 47
- 48
- 49
- 50
- 51
- 52
The order is the manufacturer's own and follows concentration down to the one percent mark. Underlined names are flagged by our criteria. Names with a dotted underline open a short note on what the ingredient does in the formula.
