Cosmetiqly Ingredient Safety
Kiehl S Since 1851 · Cleanser

Is Kiehl S Since 1851 Cucumber Herbal Conditioning Cleanser Fragrance-Free Safe?

High concern Standard: Fragrance-Free

Fails standards

2 of 34 flagged (2 high-risk, 0 watchlist) — Score 4.0/10

Cosmetiqly Score 4.0/10

Flagged ingredients & clinical citations (2)

The following ingredients in this formulation conflict with Fragrance-Free standards:

Linalool HIGH Concern

Terpene pre-hapten that oxidizes upon atmospheric exposure to form potent contact-sensitizing hydroperoxides.

Citation: SCCS. Opinion on Fragrance allergens in cosmetic products, SCCS/1459/11 (2012).
Limonene HIGH Concern

Citrus terpene that oxidizes on skin into limonene hydroperoxides with high clinical patch test positivity.

Citation: SCCS. Opinion on Fragrance allergens in cosmetic products, SCCS/1459/11 (2012).

Complete INCI formulation (34 ingredients)

Deduplicated
# Ingredient Status for Fragrance-Free
1 Aqua/Water Pass
2 Propylene Glycol Pass
3 Glycerin Pass
4 Sodium Methyl Cocoyl Taurate Pass
5 Coco-Betaine Pass
6 Sodium Cocoyl Isethionate Pass
7 Sodium Chloride Pass
8 Acrylates/C10-30 Alkyl Acrylate Crosspolymer Pass
9 Phenoxyethanol Pass
10 PEG-100 Stearate Pass
11 PPG-5-Ceteth-20 Pass
12 Glyceryl Stearate Pass
13 Coconut Acid Pass
14 Caprylyl Glycol Pass
15 Styrene/Acrylates Copolymer Pass
16 PEG-55 Propylene Glycol Oleate Pass
17 Salicylic Acid Pass
18 Chlorphenesin Pass
19 Hydrogenated Coconut Acid Pass
20 Cucumis Sativus Fruit Extract/Cucumber Fruit Extract Pass
21 Polyquaternium-53 Pass
22 Disodium Edta Pass
23 Lavandula Hybrida Oil Pass
24 Coco-Glucoside Pass
25 Sodium Isethionate Pass
26 PEG-30 Dipolyhydroxystearate Pass
27 Trideceth-6 Pass
28 Citrus Limon Peel Oil/Lemon Peel Oil Pass
29 Limonene Flagged (HIGH)
30 Rosmarinus Officinalis Leaf Oil/Rosemary Leaf Oil Pass
31 Linalool Flagged (HIGH)
32 Citric Acid Pass
33 Benzoic Acid Pass
34 Sodium Hydroxide Pass

Evaluated alternative Cleanser options (10/10 Score)

The following formulations in this category have been individually evaluated and contain zero Fragrance-Free flags:

Other safety checks for Cucumber Herbal Conditioning Cleanser

Data Provenance & Reviewer Information

  • Data Source: Open Beauty Facts · Barcode: 3605971482144 (Verify on Source)
  • Last Data Verification: 2026-11-13
  • Editorial Supervisor: Cosmetiqly Research Team, Editorial Team
  • Report an Error: If an ingredient list is inaccurate, submit a correction with product packaging proof (72-hour SLA).
Important Disclaimer: This review is an automated toxicological and dermatological screening for educational purposes. It is not medical or dermatological advice. Chemical safety depends on user skin condition and exact concentration. Always patch-test new products.