Price: $12.99
(as of Dec 25, 2025 09:28:54 UTC – Details)
From the brand
Source Naturals
Unlocking Wellness, Transforming Lives
High Demand Products
Source Naturals’ comprehensive Bio-Aligned Formulas® help bring the power of alignment to your body. When formulating, we evaluate the underlying causes of system imbalances, and then provide targeted nutrition to interdependent body systems. Our line of more than 600 products also includes well-researched, single-entity nutrients in their highest quality and most bioavailable forms.
New Arrivlas
How did we get our start?
Source Naturals® was founded in 1982 in Santa Cruz, California, by Ira Goldberg with the belief that the foundation for living your dream life is having vibrant health, and that taking individual responsibility for one’s health is the key.*
What makes our products unique?
The brand is renowned for its Bio-Aligned Formulas rooted in an integrative health philosophy.
What problem are we solving?
We have over 600 unique products spanning from immune, sleep, mood, and vision support to heart and brain health, and more.
Melatonin Supplements
Is Discontinued By Manufacturer : No
Product Dimensions : 1.3 x 1.3 x 1.6 inches; 1.6 ounces
Item model number : 021078010449
Department : Health and Beauty>Health and Wellness
Date First Available : December 13, 2013
Manufacturer : Threshold Enterprises
ASIN : B001CA5DJK
Best Sellers Rank: #40,081 in Health & Household (See Top 100 in Health & Household) #76 in Echinacea Herbal Supplements
Customer Reviews: 4.6 4.6 out of 5 stars (458) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
For Immune System Support. Herbal Resistance contains a powerful combination of herbs designed to support your immune system.
Echinacea and coptis have been traditionally used to promote well-being while Yin Chiao, a valued traditional Chinese herbal complex, helps our bodies maintain a sense of balance.
Contains Soy
Trusted For Over 40 Years. Source Naturals was created in 1982 by CEO Ira Goldberg to support each individual’s potential to enjoy optimal health.
Manufactured in the USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration. (FDA)
Customers say
Customers find this herbal supplement effective at boosting their immune system and preventing colds and flus, with one mentioning it works at the first sign of illness. The product receives positive feedback for its quality and value, with customers noting it’s worth the cost per ounce. While some find the taste acceptable, others describe it as very nasty.
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