Douglas Laboratories
Corvalen M Ribose 56 servings
$81.90
Douglas Laboratories
Douglas Laboratories
Melatonin 2 mg 60 tabs
$16.40
Douglas Laboratories
Ultra Preventive X, 240 Vegetarian Capsules
$103.50
Douglas Laboratories
Ultra Preventive X, 240 Vegetarian Capsules
$74.40
Douglas Laboratories
Zinc Lozenges, Natural Orange Flavor, 100 Tablets
$21.50
Douglas Laboratories
Multi-Probiotic� 40 Billion
$47.50
Douglas Laboratories
Ultra Preventive III Capsules 180 caps
$44.00
Douglas Laboratories
Cal-6+Mg™️, 250 Tablets
$25.60
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Douglas Laboratories
Wobenzym N, 200 Tablets
$75.00
Douglas Laboratories
Corvalen Ribose, 56 servings
$68.50
Douglas Laboratories
Cape Aloe, 100 Capsules
$17.40
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Douglas Laboratories
Wobenzym N, 100 Tablets
$40.80
Douglas Laboratories
Ultra Preventive X, 240 tabs
$103.50
Douglas Laboratories
Osteo-Guard® Plus Ipriflavone
$49.90
Douglas Laboratories
7-Keto, $89.50 ,
Douglas,310539018767,82730-60X,Acetyl L-Carnitine, $29.50 ,
Douglas,310539037249,82730-120X,Acetyl-L-Carnitine, $55.50 ,
Douglas,310539034828,200529-120X,AdrenoMend
$75.50
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Douglas Laboratories
Wobenzym Plus, 120 Tablets
$70.20
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.