Modern Hair Care Science and Practice Guide
Time：
2025-06-03
Modern Hair Care Science and Practice Guide
Chapter 1 Understanding Hair Structure
Biological Basics
Cuticle: A protective layer composed of keratin (approximately 5-7 layers)
Cortical Layer: The core structure that determines hair elasticity and colour
Medullary Layer: A hollow tube that influences hair thickness
Life Cycle
Growth Phase (2-6 years) → Regression Phase (2 weeks) → Resting Phase (3 months)
Normal daily hair shedding: 80–100 strands
Chapter 2: Daily Care System
1. Cleansing System
Scalp Type Recommended Cleansing Frequency Ingredients Oily Every other day Salicylic acid/tea tree essential oil Dry Every 3 days Amino acid surfactants/ceramides
2. Care Programme
Damaged hair: Apply a hair mask containing hydrolysed keratin twice weekly (wrap with a warm towel at 40°C)
Post-colouring/perming care: Use an acidic conditioner with a pH of 4.5–5.5 to close the cuticle
Chapter 3 Problem Solutions
1. Hair Loss Management
Minoxidil (5% concentration): FDA-approved hair growth ingredient
Laser therapy: Low-intensity laser stimulation of hair follicles at a wavelength of 650 nm
2. Split End Repair
Temporary solution: Silicone-based care oil for immediate filling
Fundamental solution: Trim 0.5–1 cm every 6–8 weeks
Chapter 4: Advanced Care Techniques
Scalp SPA Process
Pre-cleansing → Essential oil massage (10 minutes) → Nano steam (15 minutes) → Cold compress to soothe
Dietary Nutrition Pairing
Key Nutrients: Biotin (30μg daily) + Zinc (8mg) + Iron (15mg)
Recommended Diet: Salmon (Omega-3) + Spinach (Iron) + Nuts (Vitamin E)
Chapter 5: Product Selection Guide
Ingredient Decoding
Ingredients to Avoid: Sulfates (SLS/SLES), Parabens
Effective Ingredients: Panthenol (penetrating moisturisation), Argan Oil (repairs photo damage)
Tool Selection
Comb: Wide-tooth wooden comb (anti-static)
Hair Dryer: Negative ions + temperature control (below 57°C)
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