Fragrance Notes
CA Perfume
One
Inspired by Calvin Klein · Format: EDP Spray
Safe for everyday use. This product is suitable for most adults in normal fragrance application.
Why This Score
Scores are calculated by HumanSafe™ — an independent third-party platform — using peer-reviewed toxicology sources, regulatory databases, and HumanSafe's Mood Architecture™.
Safety at a Glance
✅ Safe for
- —Daily topical use
- —Most healthy adults
- —Long-term skin contact
- —EDP leave-on format
⚠ Use with care if
- —Sensitive or reactive skin
- —Direct eye-area contact
✕ Avoid if
- —Broken or compromised skin
- —Children under 3 years
Full breakdown available to members. Join free →
Key Factors
Score DriversIngredients
44 Total| CAS No. | INCI Name | FUNCTION | ISS | Status |
|---|---|---|---|---|
| 64-17-5 | Ethanol | Solvent / Carrier | 7.0Poor | Moderate |
| 7732-18-5 | Aqua | Solvent / Carrier | 10.0 | Low Risk |
| 1222-05-5 | Ambroxan | Fragrance ingredient | 7.0A- | Moderate |
| 78-70-6 | Linalool⚑ | Fragrance ingredient | 7.0A- | ⚑ EU Allergen |
| 54464-57-2 | Tetramethyl Acetyloctahydronaphthalenes | Fragrance ingredient | 7.0B | Moderate |
39 more ingredients in this formulation
See Full Ingredient List — Join Free →Ingredients sourced from MG Safety Data Sheet and EU Allergen Certificate. Formulation: fragrance oil 20% + Ethanol 65% + Aqua 15%. ⚑ = EU regulated allergen (Regulation EC 1223/2009). Note 1 = Annex II prohibited substance. Note 2 = commercial quality (includes both isomers).
Fragrance Mood Profile
MEI™ Mood ArchitectureIndex™
MEI™ scores are calculated by HumanSafe™ using HumanSafe's Mood Architecture™ — a 9-dimension olfactory-emotion mapping system. MEI is an intensity scale: 3/10 = subtle, 9/10 = immersive. Score reflects mood character, not safety.
Usage & Safety Guidance
Safer Alternatives
Higher PSS ScoreProducts with higher Product Safety Scores. Independently assessed by HumanSafe™.
Frequently Asked Questions
Is One safe for daily use?+
One achieves a Grade B PSS score, which supports regular use for most consumers. However, eau de parfum formulas are highly concentrated (typically 15–20% fragrance oils), so patch testing on a small area of skin first is prudent, especially if you have fragrance sensitivities or reactive skin.
Are there any ingredients I should watch out for?+
LINALOOL is a known allergen for a small subset of the population and may cause contact dermatitis in sensitive individuals. If you have a history of fragrance allergies or have reacted to products containing linalool, perform a patch test before full application. The synthetic polycyclic compound (TETRAMETHYL ACETYLOCTAHYDRONAPHTHALENES) should also be noted if you typically avoid complex synthetics.
What does a PSS of 6.7/10 (Grade B) mean?+
PSS (Product Safety Score) is an independent safety rating that evaluates overall hazard profile and ingredient safety data. A Grade B score indicates the product poses moderate safety risk under normal use conditions—it is not flagged as high-risk, but it is not in the top safety tier either. Individual sensitivities may still occur, and users with reactive skin should exercise caution.
The HumanSafe™ Difference
Most safety tools rate ingredients in isolation — one score regardless of concentration, context, or how the product is used. We assess at actual use concentration.
| Dimension | Other Apps (EWG, Yuka) | HumanSafe™ |
|---|---|---|
| Dose awareness | Same score regardless of concentration | Assessed at actual use concentration in this product |
| Exposure context | Same score for rinse-off and leave-on products | Adjusted for product format and absorption rate |
| Allergens | Binary flag — present or absent | Concentration compared to IFRA/EU safe limits |
| Purchase signal | Score only, no recommendation | Clear verdict + safer alternatives ranked by PSS |
Version & Audit Trail
| Version | Date | PSS Score | ISS (avg) | Change Summary |
|---|---|---|---|---|
| v2.1.0 | April 2026 | 7.2 | — | Current assessment — PSS v4.1 route-weighted engine. Dose-aware scoring at actual use concentration. |