What safety points should I check before using this oil?

This is a cosmetic product, so the main thing to check is how your skin reacts to it. Before first use, especially if your scalp is reactive or damaged, do a patch test: apply a small amount behind your ear or on the inside of your arm, leave it for several hours, then wash it off. If redness, burning, or itching appears, do not use the oil on your scalp.

Keep the oil away from your eyes and do not use it near the face of small children. Tea tree and rosemary essential oils are concentrated aromatic ingredients; they can cause irritation on sensitive skin even when diluted in a base oil. Stop using the product if any sensitivity appears.

If you have a scalp condition, are pregnant or breastfeeding, or are using a topical scalp medication, check with a dermatologist or pharmacist before adding this product to your routine. Store the bottle tightly closed at room temperature, away from direct sunlight, and check the expiry date before use.