Numbuzin No.4 Collagen 73% Boosting Serum is a concentrated, firming formula designed to support elasticity and improve overall skin resilience. Featuring 73% collagen extract alongside hydrating and smoothing components, this serum helps plump the skin, soften fine lines, and boost suppleness. Its silky, fast-absorbing texture makes it ideal for daily use and perfect for anyone wanting a more lifted, bouncy complexion.
Key Benefits
- Helps improve firmness and elasticity
- Softens the look of fine lines and early signs of aging
- Supports smoother, plumper, more youthful-looking skin
- Deeply hydrates without feeling heavy or sticky
- Enhances skin’s bounce and suppleness
- Suitable for morning or evening routines
How to Use
- Apply after cleansing and toning.
- Use 1–2 pumps and spread evenly across the face and neck.
- Gently press into skin until absorbed.
- Follow with moisturiser and, in the morning, sunscreen.
- Can be used daily.
Who It’s For
- Loss of firmness or elasticity
- Fine lines or early aging concerns
- Dehydrated, tired or dull skin
- Normal, dry or combination skin
- Anyone wanting a plumping, firming, collagen-boosting step
Product Details
- Size: 50 ml
- Texture: Silky, lightweight serum
- Key focus: Firming, plumping, elasticity support
- Skin finish: Smooth, hydrated, lifted


