Fragrance Notes
CA Perfume
Opera
Inspired by Xerjoff Sospiro · 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
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Key Factors
Score DriversIngredients
35 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 |
| 63500-71-0 | Tetrahydro-2-Isobutyl-4-Methylpyran-4-Ol, Mixed | Fragrance ingredient | 6.6Moderate | Moderate |
| 54464-57-2 | Tetramethyl Acetyloctahydronaphthalenes | Fragrance ingredient | 7.0B | Moderate |
| 105-95-3 | Ethylene Brassylate | Fragrance ingredient | 10.0A+ | Low Risk |
30 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 Opera safe for daily use?+
Opera's Grade B rating suggests it is generally safe for daily wear by most consumers. However, frequency depends on individual skin sensitivity and the concentration (eau de parfum formats are more potent than eau de toilette). Start with moderate application—typically 1–2 sprays—and monitor your skin's response over the first week of use.
Are there any ingredients I should watch out for?+
The two Moderate-grade compounds—Tetrahydro-2-isobutyl-4-methylpyran-4-ol and an Ethanone derivative—may trigger reactions in users with fragrance sensitivities or compromised skin barriers. If you have a history of allergic contact dermatitis or react to synthetic musks and woody notes, perform a 24-hour patch test on inner forearm or behind the ear before full application.
What does a PSS of 6.7/10 (Grade B) mean?+
The Product Safety Score (PSS) evaluates the overall safety profile of a finished fragrance based on ingredient concentrations, individual safety data, and stability. A Grade B (6.7/10) indicates the product meets safety standards with manageable precautions for sensitive users, falling between excellent (Grade A) and products requiring stricter warnings (Grade C or lower).
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 | 7.3 | — | Current assessment — PSS v4.1 route-weighted engine. Dose-aware scoring at actual use concentration. |




