Mielle Rosemary & Mint Hair Oil with Biotin – 59ml. 1 × Mielle Rosemary & Mint Hair Oil (59ml). Size: 59ml (2 fl oz). Transform your hair care routine withMielle Rosemary & Mint Hair Oil, a lightweight, nutrient-rich formula designed to nourish the scalp, strengthen hair, and support healthier-looking hair from root to tip.