How Many Sessions of Fractional Laser Are Needed?
What Is Fractional Laser?
Fractional laser delivers energy to the skin in microscopic columns, creating controlled micro-injuries that stimulate collagen production, tissue renewal, and dermal remodeling.
Common types include:
- Fractional CO₂ laser (ablative – deeper skin resurfacing)
- Er:YAG and non-ablative fractional lasers (less downtime, more superficial)
What Determines the Number of Sessions?
The ideal number of sessions varies based on multiple individual factors:
- Skin Condition and Severity
- Superficial pigment → fewer sessions
- Deep acne scars or stretch marks → more sessions
- Skin Type and Fitzpatrick Scale
- For types IV–VI (darker skin), treatments are spaced further apart and performed with lower settings to reduce pigmentation risk.
- For types IV–VI (darker skin), treatments are spaced further apart and performed with lower settings to reduce pigmentation risk.
- Type of Laser Used
- CO₂ laser: deeper, more aggressive, fewer sessions (1–3)
- Non-ablative lasers: milder, often require more sessions (3–6)
- Patient Age and Goals
- Anti-aging maintenance may need periodic sessions
- Targeted scar treatment is typically time-limited
Recommended Session Numbers by Concern
|
Skin Concern |
Recommended Sessions |
Session Interval |
Visible Results |
|
Acne Scars |
3–5 sessions |
Every 4–6 weeks |
After 2nd session |
|
Skin Rejuvenation / Collagen Boost |
1–3 sessions |
Every 4 weeks |
After 1st session |
|
Sunspots / Pigmentation |
2–4 sessions |
Every 3–4 weeks |
After 2nd session |
|
Fine Lines Around Eyes |
2–3 sessions |
Every 4 weeks |
After 2nd session |
|
Stretch Marks (Striae) |
3–6 sessions |
Every 4–6 weeks |
After 3rd session |
|
Surgical or Trauma Scars |
3–5 sessions |
Every 6 weeks |
After 2nd session |
A personalized treatment plan is essential. A consultation with a dermatologist is highly recommended.
How Much Time Between Sessions?
- Your skin needs 3 to 6 weeks to heal and regenerate between sessions.
- Too frequent treatments may cause irritation, hyperpigmentation, or delayed recovery.
- The exact interval depends on laser type and individual skin response.
When Will You See Results?
- Initial glow and texture improvement may be seen in 7–10 days.
- Collagen rebuilding continues for weeks, with maximum improvement in 2–3 months.
- Most patients benefit from 2 to 4 sessions for visible and lasting results.
Post-Treatment Skincare Between Sessions
- Sun Protection: Use broad-spectrum SPF 50+ daily and avoid direct sun exposure.
- Hydration: Apply hypoallergenic, barrier-supporting moisturizers regularly.
- Avoid Acids/Retinoids: For 7–10 days post-treatment, stop using AHA, BHA, or retinol products.
- No Peeling or Scrubbing: Let your skin exfoliate naturally—do not use abrasive treatments.