Description

Laetigen — Type I Collagen Injection

Laetigen is an injectable collagen booster from South Korea, certified as a Class IV medical device by the Ministry of Food and Drug Safety (MFDS). This is the country’s highest medical device safety tier. Rather than trying to stimulate collagen production indirectly, Laetigen delivers 99.9% pure Type I collagen directly into the dermis.

Laetigen uses a hybrid formula, combining cross-linked collagen for longer-lasting structural support with hydrolyzed collagen that absorbs quickly. Because of this combination, it delivers both immediate and cumulative improvements to skin elasticity, hydration, and texture.

At a Glance

Active Ingredient	Type I Collagen — 99.9% purity
pH	6.5–7.5
Onset	Immediate plus cumulative improvement over weeks
Duration	Over 6 months per course; 12+ months with a full 3-session series
Regulatory Status	MFDS Class IV medical device

Main Benefits

• Direct collagen delivery: supplies bioidentical collagen straight to the dermis rather than relying on indirect stimulation
• Hybrid formula: combines cross-linked and hydrolyzed collagen for both immediate and long-lasting results
• Skin-matched pH: a 6.5–7.5 range minimizes discomfort and post-treatment swelling
• Multi-stage filtration: produces a highly purified, neutral formulation
• Reactivates fibroblasts: encourages the skin’s own cells to continue producing new collagen networks

What’s Inside

Active Ingredient	Type I Collagen (cross-linked and hydrolyzed) — 99.9% purity
Supporting Component	Glycine, which stabilizes collagen’s triple-helix structure
Format	2.0g pre-filled syringe
Certification	MFDS Class IV medical device

How Laetigen Works

Type I collagen makes up more than 70% of skin tissue. Because of this, replenishing it directly addresses one of the fundamental drivers of skin aging. Once injected into the dermis, Laetigen’s collagen fills the spaces between cells, helping bind moisture and immediately reinforcing skin structure.

Beyond this direct effect, Laetigen also reactivates dormant fibroblasts in the treated area. These cells attach to the new collagen matrix and begin producing their own collagen networks. This extends the treatment’s benefits well past the initial injection. Glycine, one of the formula’s supporting components, helps stabilize collagen’s triple-helix structure throughout this process.

Who Laetigen Suits

Practitioners recommend Laetigen for patients interested in:

• Reduced skin elasticity or firmness
• Fine lines and early signs of sagging
• Dryness linked to declining natural collagen levels
• A gradual, natural-looking improvement rather than an immediate but short-lived effect

Treatment Areas

Face (forehead, cheeks, around the eyes and mouth) · Neck · Décolletage · Hands

Recommended Treatment Course

Most practitioners recommend an initial series of 3 sessions, spaced about 4 weeks apart. After completing this series, maintenance treatments every 6 to 12 months help sustain results, since fibroblast-driven collagen production continues to support the skin over time.

Precautions

• For use by licensed medical professionals only
• Not recommended during pregnancy or breastfeeding
• Avoid in patients with known hypersensitivity to collagen-based products
• Avoid in areas with active skin infection or inflammation

Storage & Handling

• Store at room temperature, away from direct light
• Single-use only — do not reuse or resterilize
• For professional use only, by qualified and trained practitioners

Frequently Asked Questions

What is Laetigen?
Laetigen is an MFDS-certified Class IV medical device that delivers 99.9% pure Type I collagen directly into the skin, using a hybrid cross-linked and hydrolyzed formula.

How is Laetigen different from standard skin boosters?
Most skin boosters try to stimulate collagen production indirectly. Laetigen instead delivers bioidentical collagen directly into the dermis. This offers both an immediate structural effect and longer-term fibroblast activation.

How many sessions are needed?
Most practitioners recommend an initial series of 3 sessions spaced about 4 weeks apart, followed by maintenance treatments every 6 to 12 months.

How long do results last?
Visible effects can last over 6 months per course, with a full 3-session series supporting results for 12 months or longer.

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