Rosemary essential oil can be used in various ways, but it's essential to follow proper guidelines for dilution and usage. Here are some common methods of using rosemary essential oil along with a dosage guide:

1. Aromatherapy Diffusion:

   • Add 3-5 drops of rosemary oil to an essential oil diffuser along with the appropriate amount of water. Diffuse for 30-60 minutes at a time.
   • Dosage: 3-5 drops per 100ml of water in the diffuser.

2. Topical Application:

   • Dilute rosemary oil with a carrier oil such as coconut oil, sweet almond oil, or jojoba oil. The typical dilution ratio is 2-3%.
   • Dosage: For adults, use 6-10 drops of rosemary oil per 1 ounce (30ml) of carrier oil. For children or those with sensitive skin, reduce the dosage to 1-2 drops per 1 ounce (30ml) of carrier oil.

3. Massage Oil:

   • Create a massage oil blend by combining rosemary oil with a carrier oil. This can help relax muscles and relieve tension.
   • Dosage: Follow the same dilution guidelines as mentioned above for topical application.

4. Inhalation:

   • For respiratory support or mental clarity, you can inhale rosemary oil directly from the bottle or by using steam inhalation.
   • Dosage: There is no specific dosage for inhalation. Use as needed or until you achieve the desired effect.

5. Hair Care:

   • Add a few drops of rosemary oil to your shampoo or conditioner to promote hair health and stimulate the scalp.
   • Dosage: Start with 5 drops per 1 ounce (30ml) of shampoo or conditioner and adjust as desired.

6. Baths:

   • Add a few drops of rosemary oil to your bathwater for a relaxing and aromatic experience.
   • Dosage: Use 5-10 drops of rosemary oil per full bathtub.

Remember that individual sensitivities to essential oils may vary, so it's essential to perform a patch test before using rosemary oil topically. If any irritation occurs, discontinue use. Pregnant women, nursing mothers, and individuals with specific health conditions should consult a healthcare professional before using rosemary essential oil.

Additionally, it's important to use high-quality, pure rosemary essential oil from a reputable source to ensure safety and effectiveness. Always store essential oils in a cool, dark place, away from direct sunlight or heat.