1. Get enough sleep and don't stay up late. Sleep for at least 6 hours.
2. Weight more than 45 kg.
3. Avoid eating foods that are high in fat.
4. Not currently taking antibiotics or acne medication.
5. No diarrhea in the past 7 days.
6. Refrain from drinking alcohol for 24 hours and refrain from smoking 1 hour before donation.
7. Women are not in their menstrual period. and should be gone in at least 2 days
8. Ensure that blood is safe.