All Supplements
Vitamin B3 (Niacin) vs Biotin
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Vitamin B3 (Niacin)
Biotin
Typical Dosage
14-16 mg daily
2.5 mg (2,500 mcg) daily
Best Form
Nicotinic acid (niacin)
Biotin tablets
Key Benefits
5
5
Evidence Rating
★★★★
★★★★
Best Time
With meals to minimise flushing
With meals for optimal absorption
Vitamin B3 (Niacin) Benefits
✓Energy production and metabolism
✓DNA repair and cellular health
✓Cardiovascular health and cholesterol support
✓Brain function and cognitive support
✓Skin health and nervous system function
Biotin Benefits
✓Supports healthy hair growth and reduces hair loss
✓Strengthens nails and reduces brittleness
✓Promotes skin health and complexion
✓Aids glucose and fat metabolism
✓Supports nervous system function
Can You Take Both Together?
In most cases, Vitamin B3 (Niacin) and Biotin can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication.
Which Should You Choose?
Choose Vitamin B3 (Niacin) if your primary goal is: energy production and metabolism. Choose Biotin if your primary goal is: supports healthy hair growth and reduces hair loss. Many people take both as they target different aspects of health.
Disclaimer: This comparison is for educational purposes only. Always consult a healthcare professional before starting any supplement.