What are the recommended usage rates for zedoary turmeric oil?
Recommended usage rates depend on the application. As a general guide: diffuser blends 1-5%, massage oils 1-3%, leave-on cosmetics 0.2-1%, rinse-off products 0.1-0.5%, candles and home fragrance 1-5%, and food flavouring 10-200 ppm or per the flavour house's judgement.
Usage Rate Guide
| Application | Recommended rate |
|---|---|
| Massage / body oil | 1-3% in carrier oil |
| Leave-on cosmetics | 0.2-1% |
| Rinse-off cosmetics | 0.1-0.5% |
| Balms / joint-care | 0.5-3% |
| Diffuser / incense | 1-5% of blend |
| Scented candle | 1-5% of wax |
| Soap (CP/HP) | 0.3-1% of oils |
| Food flavouring | 10-200 ppm, adjust by taste |
How To Set The Right Level
- Start at the low end and increase until the desired strength is reached; the camphoraceous note is strong
- For medicinal use, follow the pharmacopoeia/regulatory dose in the finished product (e.g. injection concentration is set by the approved formulation)
- For food, always work from the minimum self-limiting level per GB 2760 flavouring principles
- Always dilute before skin contact; never apply undiluted
- Validate with stability and safety testing at the final concentration before launch
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