HistaBlock®

Discover Don’t let seasonal irritants and pollutants interrupt your life. When pollen and dust start wreaking their havoc, try blocking them with HistaBlock! Nature’s Sunshine’s unique herbal blend features stinging nettle, quercetin and bromelain to help you breathe easier. Supports respiratory system health and function, especially during seasonal changes  Promotes healthy airways for better breathing  Neutralizes free radicals How It Works How It Works HistaBlock stands out for two compelling reasons: The whole is greater than the sum of its parts. Each ingredient strengthens this blend. Nettle has a long history of supporting respiratory health. Quercetin fights free radicals and supports respiratory health. And bromelain helps maintain clear nasal passages. HistaBlock nettle grows wild in the Albanian mountains. Our partner there has a specially trained team that carefully traverses the hills, collecting these precious leaves while protecting the biodiversity of th