Understanding Hyaluronic Acid by Molecular Weight

HA is a glycosaminoglycan that holds 1,000x its weight in water. Molecular weight determines where in the skin it acts:

• High MW (>1 MDa): Occlusive surface film; prevents water loss; does not penetrate
• Medium MW (100kDa-1MDa): Outer stratum corneum; intermediate hydration
• Low MW (10-100kDa): Deeper penetration; stimulates fibroblasts; anti-wrinkle
• Oligo-HA (<10kDa): Deepest; wound healing applications

Clinical Evidence

• 2% HA serum: significant hydration improvement vs. placebo after 4 weeks
• Dual-weight HA (high+low): outperforms single-weight formulations
• Optimal topical concentration: 0.1-2%
• Injectable HA: 20-25 mg/ml standard

Dual-Weight HA Strategy (Premium Positioning)

Combine high MW (surface hydration) + low MW (deep anti-aging) in one serum. Delivers both immediate and long-term results.

OEM Product Formats

• Serums/ampoules: 0.5-2% HA; combinations: HA+Vitamin C, HA+Niacinamide, HA+Peptides
• Eye contour: 0.5-1% low MW HA + caffeine + peptides
• Injectable skin boosters: 20mg/ml HA; combinable with PDRN, PN
• Sheet masks: 1-3% HA; lyophilized masks allow higher concentration