Black Sambucus Elderberry Syrup 5.9oz – Highest Concentration & Daily Immune Support with Elderflower – Non GMO & Vegetarian – by Dr. Dunner

Customers find the elderberry syrup effective, reporting it helped them get over stubborn flu and kick-start their immune system. They praise its taste, with one customer noting it's not overly sweet. The syrup receives positive feedback for its quality, though some customers mention it contains too much sugar.