Verdict

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.

Top pro:
Effective for those transitioning to plant-based or vegan hair products.
Top con:
Requires lathering and repeating for optimal results.
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Pros

  • •Effective for those transitioning to plant-based or vegan hair products.
  • •Provides a clean feeling after use, and initial positive experience with soft, clean hair.
  • •Ingredients may help with hair growth and thickening, recommended for hair health boost.
  • •Provides relief for eczema and exfoliates the skin without damage.
  • •Pleasant scent initially appreciated, considered good value for the price.
  • •Conditioner performs well and is silicone-free.
  • •Suitable for coarser hair or less sensitive scalps.

Cons

  • •Requires lathering and repeating for optimal results.
  • •Causes significant residue and build-up after several uses.
  • •The build-up led to an unpleasant hair feel, noticed by professionals.
  • •Stylist noticed hair condition issues immediately, due to build-up.
  • •Contains silicones contributing to product buildup, contrary to sulfate-free claims.
  • •Greasy look appears unusually soon after use, affecting usual washing routine.
  • •Slimy consistency may not appeal to users preferring silicone-free textures.
  • •Fragrance is overwhelmingly unpleasant and persists after rinsing.
  • •Breakouts on the scalp attributed to this shampoo.
Lowest at Amazon
$9.99 at Amazon
Price seen Jun 2, 2026

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How we researched this

About this review: it summarizes the professional reviews and customer ratings ShopSavvy collected for this product, alongside prices from 1 retailer in ShopSavvy's price data, most recently seen Jun 2, 2026.

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