System 1 Cleanser Shampoo For Natural Hair With Light Thinning
Shampoo

System 1 Cleanser Shampoo For Natural Hair With Light Thinning

Nioxin
36Ingredients
0EU Banned
4Caution
0.5/5Comedogenic
Pregnancy Risk1 ingredient flagged
0.5/5Comedogenic
Pregnancy Risk1 ingredient flagged
Mod. Allergens5 fragrance allergens
64% Natural33% synthetic

Contains Regulated Ingredients

EU Restricted Ingredients

These ingredients are permitted in the EU but subject to concentration limits, usage conditions, or mandatory labelling requirements under Annex III of the EU Cosmetics Regulation.

Mentha Piperita (Peppermint) Oil
Restricted — see EU CosIng Annex III
Menthol
Restricted — see EU CosIng Annex III
Salicylic Acid
Restricted — see EU CosIng Annex III
What does "EU Restricted" mean?

Restricted ingredients are not banned — they are allowed in cosmetic products as long as specific conditions are met:

  • Concentration limits — maximum allowed percentage in the final product
  • Product type restrictions — some ingredients are only allowed in rinse-off or leave-on products
  • pH restrictions — the finished product must stay within a specific pH range
  • Mandatory labelling — certain allergens must be listed on the packaging
  • Usage conditions — must not be combined with certain other ingredients

These limits are based on the EU CosIng database (Annex III) and are updated regularly. Products sold in the EU must comply with all applicable restrictions.

Ingredient Chemistry

pH

pH Efficacy

pH Efficacy

pH 5.8 — Ineffective
5.8
0Neutral 714
pH estimated from category & ingredients: 5.8
Active ingredients: Glycolic Acid, Salicylic Acid, Niacinamide
Glycolic Acid at pH 5.8: likely ineffective — above 4.5
Salicylic Acid at pH 5.8: likely ineffective — above 4.5
Niacinamide at pH 5.8: optimal range (5–7)
Glycolic Acid is at pH 5.8, which is too high for optimal efficacy (3–4).
Salicylic Acid is at pH 5.8, which is too high for optimal efficacy (3–4).
Detected actives & ideal pH
Glycolic AcidpH 3–4
Salicylic AcidpH 3–4
NiacinamidepH 5–7

Microbiome

Composition & Ethics

Product Details

Attributes

Ethics
VeganLikely
No animal-derived ingredients detected
Cruelty-FreeUnknown
No brand statement — contact manufacturer
Safety
Sulfate-FreeContains sulfates
Contains sulfate surfactants
Fragrance-FreeLikely
No fragrance ingredients detected
Confirmed Inferred Unknown Not compliant

Composition

64% natural33% synthetic
23 natural 1 unknown 12 synthetic

Based on 36 ingredients analyzed. 64% natural, 3% unknown and 33% synthetic.

Surfactants3 surfactants
Surfactant typeHarsh (SLS/ALS)
Preservatives3 preservatives
Fragrance3 essential oils

Functions Overview (15)

Texture & Feel

Texture & Feel

Expected texture
Gel-like consistency that lathers into a rich foam on contact with water
SpreadabilityEasy
AbsorptionFast
Tackiness / ResidueVery low
Finish:Clean, manageable hair — not a skin finish

Lather and slip — designed for even distribution through hair strands. Noticeable cooling / tingling sensation upon application.