🔬 How It Actually Works
The true acid form of Vitamin B3 (distinct from Niacinamide). It acts as an aggressive vasodilator, causing a temporary but massive rush of blood, oxygen, and nutrients to the skin.
💖 Why Your Skin Loves It
Provides an intense "flush" that oxygenates tissue and heavily stimulates collagen.
💡 Pro Tip
It will cause your face to turn bright red and warm for 20 minutes (the "niacin flush"). Do not use if you have Rosacea.
🧪 The Mixology Guide
Skincare is chemistry. Here is how Niacin interacts with other active ingredients on your shelf.
✅ Best Friends (Synergy)
No documented synergies yet.
⚠️ Arch Enemies (Conflict)
Retinol
Glycolic Acid