The information here describes the ingredient in general. Its possible sources may vary and do not necessarily show the origin or form used in a particular YUMA product. For product-specific information, check the relevant product page.
Sweetgrass, the natural source of dihydrocoumarin, is a sacred plant for many North American Indigenous cultures and is traditionally used in purification and prayer ceremonies due to its sweet, lingering scent.
Dihydrocoumarin is chemically related to coumarin, a natural component found in tonka beans, cinnamon, and lavender. The main difference between them is that dihydrocoumarin has a creamier, sweeter feel, whereas coumarin has a more intense scent of freshly cut hay.
In modern perfumery, dihydrocoumarin is a key ingredient for creating gourmand fragrances, a category that developed in the 1990s and is characterized by notes reminiscent of sweet treats such as vanilla, caramel, and chocolate.
The IFRA Standards form an industry self-regulatory system. They may prohibit or restrict the use of particular fragrance ingredients, or set specifications, according to end use. The status below reflects the IFRA data recorded for this ingredient. It is not a product certification and does not replace applicable law or assessment of the finished product.
IFRA categories group end uses by the type and level of exposure. A restriction or maximum concentration applies only to the stated category and does not automatically apply to another use. Check the related IFRA document for the applicable Standard version and its full conditions.
| Category | Max concentration |
|---|---|
| 1. Lip products and children's toys | 0.038% |
| 2. Deodorants and antiperspirants | 0.011% |
| 3. Face cosmetics and masks | 0.23% |
| 4. Perfumes and fragranced products | 0.21% |
| 5A. Body lotions and powders | 0.053% |
| 5B. Face moisturizers and toners | 0.053% |
| 5C. Hand creams and sanitizers | 0.053% |
| 5D. Baby care products | 0.018% |
| 6. Oral care products | 0.12% |
| 7A. Rinse-off hair treatments | 0.43% |
| 7B. Leave-on hair products | 0.43% |
The safety of dihydrocoumarin has been evaluated by the Research Institute for Fragrance Materials (RIFM), with a peer-reviewed safety assessment published. It has been found that there is a potential for skin sensitization in a small percentage of individuals. This means that in a limited number of people, repeated contact may cause a temporary reaction, including skin redness, rash, or itching.
To prevent sensitization, RIFM has established a maximum acceptable concentration level for this ingredient, and the International Fragrance Association (IFRA) has issued a safe use standard for dihydrocoumarin in household and personal care products. Every skin type is different, so consult a healthcare professional if you have any questions or concerns.
| 8. Intimate care products | 0.018% |
| 9. Rinse-off body products | 0.41% |
| 10A. Home care (non-aerosol) | 1.5% |
| 10B. Household aerosols and sprays | 1.5% |
| 11A. Products with minimal skin contact (no UV exposure) | 0.018% |
| 11B. Products with minimal skin contact (UV exposure) | 0.018% |
| 12. Products with no direct skin contact | – |