Fragrance Notes
CA Perfume
Rare Molecules 05
Inspired by Escentric Molecules · 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
13 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 |
| 33704-61-9 | Dihydro Pentamethylindanone | Fragrance ingredient | 9.0A | Low Risk |
| 1222-05-5 | Ambroxan | Fragrance ingredient | 7.0A- | Moderate |
| 67874-81-1 | Octahydro-Methoxy-Tetramethyl-Methanoazulene | Fragrance ingredient | 6.0B | Moderate |
8 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 Molecule 05 safe for daily use?+
Yes, Molecule 05 is generally safe for daily use based on its Grade A- PSS rating and ingredient safety scores. However, fragrances are personal-use products; some individuals may experience irritation or sensitization with daily application depending on skin type and fragrance tolerance. Start with limited exposure and discontinue if redness, itching, or burning occurs.
Are there any ingredients I should watch out for?+
All five primary ingredients carry Grade A or Grade A- safety ratings. The main consideration is that this formulation is synthetically complex—65% of the product consists of five engineered aromatic compounds. People with known fragrance allergies, contact dermatitis, or asthma triggered by scented products should avoid or patch-test this product first.
What does a PSS of 7.6/10 (Grade A-) mean?+
PSS (Product Safety Score) is an independent safety assessment rating. A 7.6/10 Grade A- score indicates that Molecule 05 meets high safety standards with minimal documented toxicological concerns based on its ingredient profile. This is a above-average rating for fragrance products, though it does not eliminate the possibility of individual sensitivity reactions.
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 | 7.6 | — | Current assessment — PSS v4.1 route-weighted engine. Dose-aware scoring at actual use concentration. |