🛡️ Safety & EU Compliance: Using This Tool Responsibly

In the EU, leave-on perfumes and body products must be safety-assessed before being placed on the market. This includes preparation of a Cosmetic Product Safety Report (CPSR) and correct labelling under the CLP Regulation where applicable.

IFRA Standards are widely used as industry best-practice guidance. While IFRA itself is not EU law, safety assessors commonly reference IFRA limits when reviewing formulas.

This calculator is a starting point to help you:

• 🔍 Estimate your total essential oil concentration (% of finished product)
• 📊 Understand how much each ingredient contributes — especially important for restricted materials
• ✅ Adjust your formula (drops / ml / grams) until it aligns with recognised safety guidance

⚠️ About “Drops”

If you use drops, results depend on the Drops per ml setting (e.g., 20 or 30 drops/ml). Drops are an approximation and vary by material and dispenser.

For greater precision — especially for commercial work — use ml, or grams with density.

⚠️ Example: Bergamot (Citrus bergamia, cold-pressed)

IFRA guidance to avoid phototoxicity in leave-on products exposed to sunlight is commonly cited at 0.4% in the finished product.

If your calculator is set to 20 drops/ml:

• 2 drops ≈ 0.10 ml
• 0.10 ml added to 10 ml carrier = approx. 0.99% final dilution

👉 This is above the commonly referenced 0.4% guidance. Reduce the bergamot amount or increase the carrier volume until the output is ≤ 0.4%.

🌿 Where to Check Dermal Limits

• IFRA Standards Library (product category matters)
• Tisserand Institute – Dilution Chart
• Tisserand Institute – Phototoxicity Guidance
• Tisserand & Young – Essential Oil Safety (2nd ed.)
• Your EU Safety Assessor (final authority for commercial compliance)

🧪 Commonly Referenced Maximums (Educational Guide Only)

The figures below are widely cited in professional aromatherapy and perfumery education. Always verify current IFRA standards and assessor guidance before commercial sale.

This tool supports informed formulation decisions but does not replace a professional cosmetic safety assessment.