Hair strength starts at the scalp — and most shampoo and conditioner pairs address one or the other, never both simultaneously. This physician-formulated shampoo and conditioner set is built around a shared certified microbiome-friendly platform that deepens each product's individual benefit: the Root Purifier Shampoo creates the clean, balanced scalp environment, and the Strand Defender Conditioner locks in strength and protection at the strand level, together producing visibly thicker, stronger hair with consistent use.The Root Purifier Shampoo uses Alpha-Glucan Oligosaccharide (prebiotic) to strengthen the scalp microbiome, Australian Wild Berries for antioxidant scalp protection, Vegan Protein (Hydrolyzed Quinoa) for nourishment, and Biosurfactant for deep, non-stripping cleansing. Clinically shown to reduce sebum by 100% and improve dry, flaky scalp in a single use. The Strand Defender Conditioner uses the same Hydrolyzed Quinoa protein to penetrate the hair cortex and fill structural gaps, Panthenol to smooth the cuticle and reduce mechanical breakage, and Australian Wild Berries to defend against environmental damage — all without silicones that build up on the scalp over time.Both products are certified microbiome-friendly by MyMicrobiome. Color-safe, extension-safe. Free of parabens, phthalates, silicones, sulfates, synthetic fragrance, and hormones. Visibly improves hair volume, strength, and texture in as little as 2 weeks. Available at Beauty Riche with same-day shipping.