When applied once daily, this invigorating formula featuring our innovative blend of tangerine peel and Japanese knotweed penetrates to help support hair’s natural keratin. Certified organic amla instantly thickens to help lift hair at the root while our patented bio-fermented blend plus our Ayurvedic herb blend with ginseng and certified organic turmeric invigorates the scalp when massaged in. Apply once a day, every day for thicker, fuller looking hair. INVATI™ means "invigorate" in Sanskrit and taps the power of Ayurveda—the ancient Indian art of renewal—to help invigorate the scalp when massaged in. The duo-pack gives 3 weeks of invati advanced™ scalp revitalizer usage for free based on recommended retail price of individual bottle versus duo-pack. Contains a 12-week supply.**