🌿 What is ISO 9235?

ISO 9235 defines what qualifies as “natural” in fragrance materials. Established by the International Organization for Standardization (ISO), it helps ensure that marketing and product claims remain transparent and trustworthy.

According to ISO 9235, a natural fragrance material must be obtained physically, microbiologically, or enzymatically from plants — without synthetic chemical alterations. Common sources include flowers, leaves, woods, roots, fruits, and resins.

🌸 Key Principles of ISO 9235

• Source Authenticity: Only botanical (and some animal-derived) materials may be labeled as “natural.”
• Processing Methods: Accepted processes include distillation, expression, extraction with natural solvents, fermentation, or enzymatic modification.
• No Synthetics: Materials altered through chemical synthesis cannot be called natural, even if they began as plant-based.
• Transparency: Brands that market natural fragrance oils must align with ISO 9235 definitions to build consumer trust.

🌱 Why ISO 9235 Matters for Natural & Plant-Based Fragrances

With consumer demand for clean, sustainable fragrance growing, ISO 9235 is vital for anyone formulating with plant-based fragrance oils.

• For brands: Enables transparent marketing of natural fragrance oils.
• For formulators: Defines which raw materials can be used in a natural fragrance formulation.
• For consumers: Provides confidence that “natural” claims reflect true botanical origin.

🌍 ISO 9235 and the Future of Clean Fragrance

As more companies invest in plant-based fragrance innovation, ISO 9235 ensures that “natural” really means natural. From essential oils to CO₂ extracts and botanical aromatics, the standard reinforces authenticity and integrity in every scent.

For brands creating perfumes, candles, and skincare, highlighting ISO 9235 compliance can be a powerful way to stand out in a crowded marketplace.