Many individuals discontinue minoxidil due to itching, dryness, or dermatitis. Rosemary oil, when diluted properly, may offer improved scalp comfort while still supporting hair density. Its antimicrobial and anti-inflammatory properties can help maintain balanced scalp conditions, especially for people prone to irritation or buildup. At Otter Hair Labs, we recommend starting with a low dilution—around one percent—and performing a patch test for three days. Rosemary oil is not a replacement for clinical treatments but can be a meaningful addition for sensitive users who need gentler support. Continuous use for at least 12 weeks is ideal for visible improvements.