Oral oligochitosan chitosan oligosaccharide for skin care

Oral oligochitosan chitosan oligosaccharide for skin care

Product Description: Chitosan Oligosaccharide (COS) Oral Beauty Supplement

1. Physicochemical Properties

• Molecular Weight: ≤3,200 Da (DP 2–10), far smaller than chitosan (≥10,000 Da).
• Solubility: 100% water-soluble, low viscosity, no precipitation; 98% absorption rate in the gut (vs. 5–10% for chitosan).
• Structure: Linear chains of β-1,4-linked D-glucosamine; the only naturally occurring positively charged alkaline oligosaccharide.
• Purity & Quality: Deacetylation (DD) 70–95%; heavy metals ≤10 mg/kg; total plate count ≤1,000 CFU/g; non-GMO, allergen-free, no additives.
• Sensory: White/off-white fine powder, odorless, slightly sweet, no calories.

2. Immune & Beauty Mechanisms (with Data)

① Dual Immune Activation (Skin & Systemic Defense)

• Macrophage & TLR4 Pathway: COS binds to TLR4/mannose receptors on macrophages, triggering NF-κB/MAPK signaling; upregulates TLR4 mRNA (2.3×) and IFN-γ (3.1×) vs. control (4 mg/mL COS, 24 h).
• Cytokine Balance: Moderately boosts TNF-α (+42%), IL-6 (+35%), and IgA/IgG (+50–70%); suppresses pro-inflammatory TGF-β (-28%) and IL-10 (-22%), reducing chronic skin inflammation.
• Gut-Skin Axis: Acts as a prebiotic—increases Bifidobacterium/Lactobacillus by 2–3×, elevates SCFAs (+65%), enhances intestinal barrier function; reduces skin inflammation by 40–50% via gut-immune crosstalk.

② Antioxidant & Anti-Aging (Free Radical Scavenging)

• Radical Scavenging: At 0.32 mg/mL, COS achieves 97.81% hydroxyl radical scavenging (equivalent to 0.64 mmol/L vitamin C); at 2.0 mg/mL, 59.84% superoxide anion and 65.76% DPPH radical inhibition.
• Collagen Protection: Inhibits MMP-1 (collagenase) by 38%, reduces UV-induced collagen degradation; boosts pro-collagen I synthesis by 52% in fibroblasts (in vitro).
• Anti-Glycation: Reduces AGEs (advanced glycation end products) by 31%, preventing skin yellowing and stiffness.

③ Skin Barrier & Hydration (Deep Moisture & Repair)

• Hyaluronic Acid (HA) Synthesis: Upregulates HA synthase 2 (HAS2) by 2.8×, increasing endogenous HA by 45%; enhances skin water-holding capacity by 50–60%, reducing transepidermal water loss (TEWL) by 33%.
• Barrier Repair: Upregulates filaggrin and ceramide synthesis; improves skin barrier recovery rate by 40% in UV-damaged skin (in vivo mouse model).
• Antibacterial & Oil Balance: Inhibits P. acnes (90% at 1 mg/mL) and S. aureus; regulates sebum secretion by 25–30%, reducing acne and shine.

3. Summary

1. Immune Boost: Activates TLR4/NF-κB signaling, balances cytokines, and optimizes gut microflora to reduce skin inflammation.
2. Antioxidant & Anti-Aging: Scavenges free radicals (97.81% hydroxyl radical inhibition), protects collagen, and fights glycation for firmer, brighter skin.
3. Deep Hydration & Barrier Repair: Stimulates endogenous HA synthesis (+45%), enhances moisture retention, and repairs damaged skin barriers.
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