Hepatitis B Surface Antibody (anti-HBs)

Routine annual

also

What it isAn antibody against the hepatitis B surface antigen, produced after vaccination or after recovery from infection.

DoesConfirms immunity to hepatitis B.

GoodA protective antibody level confirms immunity from vaccine or natural recovery.

BadLevels below the protective threshold suggest waning immunity and may prompt revaccination.

Standard
≥10 mIU/mL = protective.
Optimal
100–1000 mIU/mL (higher is good)
Modifiers
Wanes with time; immunosuppression reduces response.

How to optimize

Lifestyle
Diet
Supplements
Vitamin D3, zinc may improve vaccine response.
Peptides
Drugs
Hepatitis B vaccination or booster.