While the Renpure Shampoo, Biotin & Collagen offers some benefits such as hair thickening and clean feel, it seems to struggle with balancing its formula, causing significant build-up due to the combination of silicones and a sulfate-free base. The overwhelmingly unpleasant scent and the need for multiple applications affect the overall user experience. If scent sensitivity or build-up is a concern, you might want to explore alternative products that better align with hair care goals and fragrance preferences.
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