Douglas Laboratories
Ultra Preventive X, 240 Vegetarian Capsules
$103.50
Douglas Laboratories
Douglas Laboratories
Ultra Preventive III Capsules 180 caps
$44.00
Douglas Laboratories
Multi Probiotic 40 Billion 60 vegcaps
$47.50
Douglas Laboratories
Corvalen Ribose, 56 servings
$68.50
Douglas Laboratories
Ultra Preventive X, 240 tabs
$103.50
Douglas Laboratories
7-KETO 100 mg 60 vcaps
$89.50
Douglas Laboratories
Quercetin Bromelain Complex 100 tabs
$45.00
Douglas Laboratories
Melatonin 3 mg 60 tabs
$16.00
Douglas Laboratories
B-Complex w/ Metafolin 60 vcaps
$28.00
Douglas Laboratories has been a trusted name in professional-grade nutritional supplementation since 1955, making it one of the longest-standing supplement manufacturers in the United States. Based in Pittsburgh, Pennsylvania, Douglas Labs operates a state-of-the-art, NSF GMP-certified manufacturing facility with rigorous in-house quality control at every production stage. Their product catalog spans over 800 formulas — from foundational vitamins and minerals to specialized clinical formulas for practitioners. Douglas Laboratories formulates using the most bioavailable nutrient forms available: Albion-chelated minerals, methyl-B vitamins, and patented specialty compounds. For those who want practitioner-quality nutrition without a prescription, Douglas Laboratories is the benchmark brand.
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