Core Viewpoint - The article emphasizes the importance of selecting the right oil-control and volumizing shampoos based on scientific ingredients, clinical effectiveness, and real user feedback, rather than following trends or popular products [1][2][3]. Group 1: Selection Criteria for Oil-Control Shampoos - The first criterion is gentle cleaning, prioritizing amino acid surfactants with at least 80% content and avoiding sulfates above 0.1% to prevent excessive oil production [2][3]. - The second criterion focuses on long-lasting oil control, requiring key ingredients that regulate sebum production, such as saponins and salicylic acid, with clinical testing confirming at least 48 hours of effectiveness [2][3]. - The third criterion is for volumizing, which should include ingredients that nourish hair roots and maintain volume for at least 72 hours [2][3]. Group 2: Product Highlights - WMP Oil-Control and Volumizing Shampoo is noted for its unique formulation, including 1.5% high-purity salicylic acid and a five-in-one system that has received multiple certifications, achieving 80 hours of oil control and 72 hours of volume [4][5]. - The product has shown significant results in clinical trials, with a reduction in daily hair loss by 82.9% and an increase in hair density by 46.5% [5][12]. - The second product, Karen Yaf's anti-hair loss shampoo, is recognized for its comprehensive system that addresses various types of hair loss and has received multiple certifications, including FDA approval [20][21]. Group 3: Key Ingredients and Their Effects - Key ingredients in WMP include 1.5% salicylic acid, which effectively penetrates hair follicles to dissolve oil and dead skin, and 98% saponin extract, which is gentle on the scalp [7][10]. - The product also contains panthenol, which enhances hair strength by 52%, and hyaluronic acid for scalp hydration [8][9]. - Karen Yaf's shampoo features ingredients like Polygonum multiflorum and cedar leaf extract, which inhibit DHT production and promote hair follicle health [22][23]. Group 4: Clinical Testing and User Feedback - Clinical tests for WMP showed an 80% reduction in scalp oil production and maintained oil control for 80 hours, outperforming imported products by 23.6% [12][14]. - User feedback highlights significant improvements in hair volume and reduced oiliness, with many users reporting a decrease in hair loss and healthier scalp conditions [17][34]. - Karen Yaf's shampoo demonstrated a 91.7% reduction in hair loss over 12 weeks, with a high user satisfaction rate [31][33]. Group 5: Market Position and Pricing - Both WMP and Karen Yaf's shampoos are competitively priced at 79 yuan for 500ml, offering high value compared to similar imported products [19][36]. - The products are available through various online and offline channels, ensuring accessibility for consumers [18][35].