مستشفى الخرطوم التعليمي للأمراض الجلدية و التناسلية

⭐ Yellow Laser (577 nm / 585 nm / 595 nm) 💛✨

🟡 What Is the Yellow Laser?

It’s a laser that emits yellow light at wavelengths like 577 nm, 585 nm, or 595 nm, strongly absorbed by oxyhemoglobin in blood vessels and melanin.

➡️ Meaning: SUPER effective for vascular problems, redness, rosacea, scars, and pigmentation. ❤️💛

🎯 How It Works (Mechanism) 🔬✨

👉 1. Selective Photothermolysis

🔥 Targets blood vessels (oxyhemoglobin) → heats them → makes them shrink or close.

🩸 Perfect for vascular lesions.

👉 2. Collagen Stimulation

💥 Heat triggers fibroblasts → produces new collagen → smoother, tighter skin.

👉 3. Melanin Reduction

💛 Light absorption reduces brown pigment gently (especially 577 nm).

💛 Most Common Types of Yellow Lasers

1️⃣ 577 nm Yellow Laser

🎯 Extremely selective for vessels & pigmentation

⭐ Best for melasma, freckles, rosacea, redness

✨ Less downtime

2️⃣ 585/595 nm (PDL – Pulsed Dye Laser)

🩸 Best for pure vascular lesions

👶 Birthmarks

🩹 Scars, keloids

🔴 Port-wine stains

🌟 Indications (When We Use Yellow Laser)

❤️ Vascular Indications

Rosacea 🌹

Facial redness 🔴

Spider veins 🕸️

Port-wine stain 🍷

Cherry angiomas 🍒

Post-acne redness ❤️‍🔥

Red stretch marks

💛 Pigment Indications

Melasma 🌥️

Freckles 🌼

Solar lentigines

PIH (post-inflammatory hyperpigmentation)

✨ Skin Texture / Rejuvenation

Fine wrinkles 😊

Enlarged pores

Skin tightening ✨

Atrophic scars

🩹 Scar Treatment

Red scars

Fresh scars

Hypertrophic scars & keloids 💢

💥 Advantages (Why Yellow Laser is Amazing)

🌟 Minimal pain

🌟 Safe for dark skin types (especially 577 nm)

🌟 Very low risk of PIH

🌟 No downtime or minimal

🌟 Precise targeting

🌟 Effective for redness + pigment together (unique!)

😣 Possible Side Effects

Mild redness 1–3 days 🌺

Swelling 1–2 days

Temporary darkening of spots

Rare: bruising (especially 595 nm)

Very rare: PIH

⏱️ How Many Sessions?

✨ Usually: 3–6 sessions

⏳ Spaced every 3–4 weeks

💛 Aftercare

🧊 Cold compress if needed

🌞 Strict sunscreen (SPF 50)

🚫 Avoid heat for 48 hrs

🚫 Avoid harsh skincare 2–3 days

💧 Hydrate well

⭐ Results

Redness improves 60–90%

Pigmentation improves 40–70%

Skin glow immediately ✨

Collagen builds over 8–12 weeks

Kaposi sarcoma
Rinbow pattern

Basal cell carcinoma