Contains a 540mg proprietary blend of four powerful respiratory support ingredients in each 2-capsule serving.
Features nettle leaves, quercetin, bitter orange fruit, and bromelain working synergistically to support respiratory wellness.
Nettle sourced from the pristine Albanian mountains by specially trained teams committed to sustainable harvesting practices.
Provides antioxidant support to help maintain healthy respiratory function during seasonal challenges.
100% vegan VegCaps made with plant-based ingredients and guaranteed pure quality standards.

About Nature’s Sunshine HistaBlock

When seasonal changes bring unwanted respiratory challenges, your body needs targeted support to maintain comfortable breathing and clear airways. Nature’s Sunshine HistaBlock delivers a carefully crafted blend of four time-honored ingredients that work together to support your respiratory system’s natural defenses against environmental irritants and seasonal discomfort.

This unique formula combines the wisdom of traditional herbal use with modern understanding of respiratory wellness. Each ingredient has been selected for its specific properties that support healthy respiratory function, creating a synergistic blend that’s greater than the sum of its parts.

The Power of Four Key Ingredients

At the heart of HistaBlock lies a proprietary 540mg blend featuring nettle leaves, quercetin, bitter orange fruit, and bromelain. Nettle leaves have been valued for centuries for their ability to support respiratory comfort during seasonal transitions. Our nettle is sustainably harvested from the pristine Albanian mountains by specially trained teams who carefully traverse the hills while protecting the region’s biodiversity.

Quercetin, a powerful flavonoid with antioxidant properties, supports the body’s natural response to environmental challenges. This plant compound may help maintain healthy cellular function in the respiratory system, particularly during times when seasonal irritants are present.

Bitter orange fruit contributes naturally occurring compounds that have traditionally been used to support clear breathing pathways. The addition of bromelain, a natural enzyme derived from pineapple, rounds out this comprehensive formula with its well-known properties that support tissue comfort.

Key Ingredients

Ingredient	Botanical Name	Traditional Use
Nettle Leaves	Urtica dioica	Respiratory comfort, seasonal support
Quercetin	From Japanese sophora fruit	Antioxidant support, respiratory wellness
Bitter Orange Fruit	Citrus x aurantium	Airway support, respiratory function
Bromelain	From pineapple	Tissue comfort, mucous membrane support

Commitment to Purity and Environmental Responsibility

Nature’s Sunshine demonstrates its commitment to both personal health and environmental stewardship with HistaBlock. The supplement comes in 100% vegan VegCaps with guaranteed pure quality, and the bottle is made from 100% post-consumer recycled material, reflecting the company’s dedication to sustainability.

Our Albanian nettle harvest exemplifies this commitment to quality and responsibility, with trained teams who ensure crop sustainability by closely monitoring harvesting practices and proudly employing women throughout their operations. Each batch undergoes rigorous quality testing to ensure the potency and purity you expect from Nature’s Sunshine.

Recommended Usage

Take 2 VegCaps twice daily. For best results, use consistently as part of a comprehensive approach to respiratory wellness.

Supplement Facts
Serving Size: 2 VegCaps
Servings Per Container: 45
Amount Per 2 VegCaps	Amount	% Daily Value
Proprietary Blend Nettle Leaves (Urtica dioica) Quercetin (from Japanese sophora fruit) Bitter Orange Fruit (Citrus x aurantium) Bromelain (from pineapple)	540 mg †	**
† Daily Value not established.
Other Ingredients: Dicalcium phosphate, vegetable capsule (hypromellose, water), cellulose, vegetable magnesium stearate, silicon dioxide.

Frequently Asked Questions

How does HistaBlock support respiratory health?

HistaBlock contains a synergistic blend of four ingredients that work together to support respiratory wellness. Nettle leaves have been traditionally used for respiratory comfort, quercetin provides antioxidant support, bitter orange supports airway function, and bromelain helps maintain tissue comfort. The 100% vegan VegCaps ensure this formula is suitable for all dietary preferences while supporting the body’s natural response to seasonal and environmental challenges.

What makes the nettle in HistaBlock special?

Our nettle is sustainably harvested from the pristine Albanian mountains by specially trained teams. This region provides ideal growing conditions for high-quality nettle, and our partners ensure sustainable harvesting practices while protecting biodiversity and supporting local communities.

When is the best time to take HistaBlock?

HistaBlock can be taken year-round for ongoing respiratory support or specifically during seasonal transitions when you need extra support. Take 2 VegCaps twice daily for best results. Many people find it beneficial to start taking HistaBlock before anticipated seasonal challenges.

Can I take HistaBlock with other supplements?

HistaBlock can generally be taken with other supplements. However, if you’re taking medications or have specific health conditions, it’s always best to consult with a healthcare professional before adding any new supplement to your routine.

How long should I take HistaBlock to experience benefits?

Individual results may vary, but many people notice respiratory support benefits within a few weeks of consistent daily use. For best results, use HistaBlock consistently as part of your daily wellness routine. The natural ingredients work cumulatively to support your respiratory system over time.

Why Shop with Us?

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We stand behind every Nature’s Sunshine product. If you’re not completely satisfied with your purchase, simply contact us to arrange a return—we’ll provide a full refund, no questions asked. Your wellness and satisfaction are our top priorities.

Who is HistaBlock For?

Adults seeking natural respiratory support with 100% vegan VegCaps
Individuals looking for antioxidant support for respiratory wellness
People who want to maintain comfortable breathing year-round
Those interested in traditional herbal approaches to respiratory health
Anyone wanting to support their body’s natural response to environmental challenges