877-465-0844

Free Ground Shipping on Orders Over $49.99

Search

Collection: Douglas Laboratories

For over 50 years, Douglas Laboratories has been dedicated to formulating high-quality nutritional supplements, adhering to rigorous standards often overlooked by others. They utilize Good Manufacturing Practices (GMP), ISO-certified labs, and a Vendor Certification Program (VCP) to ensure top-quality products you can trust.

At OVitaminPro, we proudly offer a wide range of Douglas Laboratories supplements, including the top-rated Ultra-Preventive X multivitamin, to support your healthy and active lifestyle.

Douglas Laboratories GABA 500mg 60c

Douglas Laboratories GABA 500mg 60c

Regular price $25.50

Regular price Sale price $25.50
Unit price per
Douglas Laboratories GI Digest 90c

Douglas Laboratories GI Digest 90c

Regular price $58.50

Regular price Sale price $58.50
Unit price per
Douglas Laboratories Ginkgo Biloba Max-V 60c

Douglas Laboratories Ginkgo Biloba Max-V 60c

Regular price $31.00

Regular price Sale price $31.00
Unit price per
Douglas Laboratories Glucosamine + MSM Forte 120c

Douglas Laboratories Glucosamine + MSM Forte 120c

Regular price $63.50

Regular price Sale price $63.50
Unit price per
Douglas Laboratories Glucosamine Plus 120vc

Douglas Laboratories Glucosamine Plus 120vc

Regular price $53.50

Regular price Sale price $53.50
Unit price per
Douglas Laboratories Glucosamine Plus Extra Strength 90c

Douglas Laboratories Glucosamine Plus Extra Strength 90c

Regular price $55.50

Regular price Sale price $55.50
Unit price per
Douglas Laboratories Gluten Dairy Ultra Enzyme Berry flavor 60 chewable tablets

Douglas Laboratories Gluten Dairy Ultra Enzyme Berry flavor 60 chewable tablets

Regular price $45.50

Regular price Sale price $45.50
Unit price per
Douglas Laboratories Glycine 60c

Douglas Laboratories Glycine 60c

Regular price $20.20

Regular price Sale price $20.20
Unit price per
Douglas Laboratories Hair Growth+ 60vc

Douglas Laboratories Hair Growth+ 60vc

Regular price $36.00

Regular price Sale price $36.00
Unit price per
Douglas Laboratories Hair, Skin and Nails Plus Formula 100c

Douglas Laboratories Hair, Skin and Nails Plus Formula 100c

Regular price $39.00

Regular price Sale price $39.00
Unit price per
Douglas Laboratories Hawthorne Max-V 60c

Douglas Laboratories Hawthorne Max-V 60c

Regular price $24.00

Regular price Sale price $24.00
Unit price per
Douglas Laboratories Hyaluronic Acid 60c

Douglas Laboratories Hyaluronic Acid 60c

Regular price $47.50

Regular price Sale price $47.50
Unit price per
Douglas Laboratories Hydrolyzed Collagen+ 140g

Douglas Laboratories Hydrolyzed Collagen+ 140g

1 total reviews

Regular price $56.50

Regular price Sale price $56.50
Unit price per
Douglas Laboratories Inositol 100c

Douglas Laboratories Inositol 100c

Regular price $37.00

Regular price Sale price $37.00
Unit price per
Douglas Laboratories K2-D3 with Astaxanthin 30c

Douglas Laboratories K2-D3 with Astaxanthin 30c

1 total reviews

Regular price $45.00

Regular price Sale price $45.00
Unit price per
Douglas Laboratories L-Arginine 500mg 60c

Douglas Laboratories L-Arginine 500mg 60c

Regular price $18.70

Regular price Sale price $18.70
Unit price per
Douglas Laboratories L-Arginine 700mg 100c

Douglas Laboratories L-Arginine 700mg 100c

Regular price $31.00

Regular price Sale price $31.00
Unit price per
Douglas Laboratories L-Glutamine 60c

Douglas Laboratories L-Glutamine 60c

1 total reviews

Regular price $18.40

Regular price Sale price $18.40
Unit price per
Douglas Laboratories L-Glutamine Powder 250g

Douglas Laboratories L-Glutamine Powder 250g

Regular price $51.00

Regular price Sale price $51.00
Unit price per
Douglas Laboratories L-Methionine 60c

Douglas Laboratories L-Methionine 60c

Regular price $29.50

Regular price Sale price $29.50
Unit price per
Douglas Laboratories L-Serine 60c

Douglas Laboratories L-Serine 60c

Regular price $53.00

Regular price Sale price $53.00
Unit price per
Douglas Laboratories L-Theanine 60c

Douglas Laboratories L-Theanine 60c

Regular price $42.50

Regular price Sale price $42.50
Unit price per
Douglas Laboratories L-Tryptophan 60c

Douglas Laboratories L-Tryptophan 60c

Regular price $54.50

Regular price Sale price $54.50
Unit price per
Douglas Laboratories Liposomal Glutathione 45 softgel capsules

Douglas Laboratories Liposomal Glutathione 45 softgel capsules

Regular price $87.50

Regular price Sale price $87.50
Unit price per
Douglas Laboratories Liquid B12 (formulated with Methylcobalamin) 1oz

Douglas Laboratories Liquid B12 (formulated with Methylcobalamin) 1oz

1 total reviews

Regular price $20.60

Regular price Sale price $20.60
Unit price per
Douglas Laboratories Liquid Magnesium 8fl. oz (240ml)

Douglas Laboratories Liquid Magnesium 8fl. oz (240ml)

Regular price $38.50

Regular price Sale price $38.50
Unit price per
Douglas Laboratories Liquid Vitamin D3 30ml

Douglas Laboratories Liquid Vitamin D3 30ml

1 total reviews

Regular price $32.00

Regular price Sale price $32.00
Unit price per
Douglas Laboratories Lutein 90sg

Douglas Laboratories Lutein 90sg

Regular price $32.50

Regular price Sale price $32.50
Unit price per
Douglas Laboratories Magnesium Citrate 90c

Douglas Laboratories Magnesium Citrate 90c

Regular price $20.00

Regular price Sale price $20.00
Unit price per
Douglas Laboratories Magnesium Glycinate 120vc

Douglas Laboratories Magnesium Glycinate 120vc

1 total reviews

Regular price $27.00

Regular price Sale price $27.00
Unit price per
Douglas Laboratories Magnesium Glycinate 240c

Douglas Laboratories Magnesium Glycinate 240c

Regular price $51.00

Regular price Sale price $51.00
Unit price per
Douglas Laboratories Magnesium Oxide 100c

Douglas Laboratories Magnesium Oxide 100c

Regular price $16.50

Regular price Sale price $16.50
Unit price per
Douglas Laboratories Magnesium Oxide 250c

Douglas Laboratories Magnesium Oxide 250c

Regular price $22.00

Regular price Sale price $22.00
Unit price per
Douglas Laboratories MCT/Butyrate Liquid with Sunbutyrate 15.6 fl oz

Douglas Laboratories MCT/Butyrate Liquid with Sunbutyrate 15.6 fl oz

Regular price $52.00

Regular price Sale price $52.00
Unit price per
Douglas Laboratories Melatonin 1mg 60T

Sold out

Douglas Laboratories Melatonin 1mg 60T

Regular price $17.50

Regular price Sale price $17.50
Unit price per

Sold out
Douglas Laboratories Melatonin 3mg 60c

Douglas Laboratories Melatonin 3mg 60c

Regular price $18.50

Regular price Sale price $18.50
Unit price per
Douglas Laboratories Melatonin Prolonged Release 3mg 180T

Douglas Laboratories Melatonin Prolonged Release 3mg 180T

Regular price $47.50

Regular price Sale price $47.50
Unit price per
Douglas Laboratories Melatonin Prolonged Release 3mg 60T

Douglas Laboratories Melatonin Prolonged Release 3mg 60T

Regular price $19.00

Regular price Sale price $19.00
Unit price per
Douglas Laboratories Metabolic Lean 60c

Douglas Laboratories Metabolic Lean 60c

Regular price $58.00

Regular price Sale price $58.00
Unit price per
Douglas Laboratories Methyl B12 Plus 90 lozenges

Douglas Laboratories Methyl B12 Plus 90 lozenges

2 total reviews

Regular price $24.00

Regular price Sale price $24.00
Unit price per
Douglas Laboratories Methyl Folate L-5-MTHF 1,000 mcg 60T

Douglas Laboratories Methyl Folate L-5-MTHF 1,000 mcg 60T

Regular price $24.00

Regular price Sale price $24.00
Unit price per
Douglas Laboratories Methylated Resveratrol Plus 30 vegetarian capsules

Douglas Laboratories Methylated Resveratrol Plus 30 vegetarian capsules

Regular price $85.00

Regular price Sale price $85.00
Unit price per
Douglas Laboratories Milk Thistle Max-V 60c

Douglas Laboratories Milk Thistle Max-V 60c

Regular price $37.50

Regular price Sale price $37.50
Unit price per
Douglas Laboratories Multi Probiotic 40 Billion 60c

Douglas Laboratories Multi Probiotic 40 Billion 60c

1 total reviews

Regular price $47.50

Regular price Sale price $47.50
Unit price per
Douglas Laboratories Multi-Probiotic 4 Billion 100c

Douglas Laboratories Multi-Probiotic 4 Billion 100c

Regular price $42.50

Regular price Sale price $42.50
Unit price per
Douglas Laboratories N-Acetyl-L-Cysteine 600 mg 90vc

Douglas Laboratories N-Acetyl-L-Cysteine 600 mg 90vc

Regular price $32.00

Regular price Sale price $32.00
Unit price per
Douglas Laboratories Natural C 100T

Douglas Laboratories Natural C 100T

Regular price $23.00

Regular price Sale price $23.00
Unit price per
Douglas Laboratories Natural Vitamin E Complex 100c

Douglas Laboratories Natural Vitamin E Complex 100c

Regular price $43.00

Regular price Sale price $43.00
Unit price per
Douglas Laboratories Niacinamide 100c

Douglas Laboratories Niacinamide 100c

Regular price $18.10

Regular price Sale price $18.10
Unit price per
Douglas Laboratories Niatab 500 100T

Douglas Laboratories Niatab 500 100T

Regular price $20.70

Regular price Sale price $20.70
Unit price per

All products, claims and testimonials made about specific products on or through this site have not been evaluated by the United States Food and Drug Administration and are not approved to diagnose, treat, cure or prevent disease. Any information contained on any product label or packaging and any information provided on OVitaminPro.com is for informational purposes only and is not intended as a substitute for advice from your physician or other health care professional. You should not use the information on this site for diagnosis or treatment of any health problem or for prescription of any medication or other treatment. You should consult with a healthcare professional before starting any diet, exercise or supplementation program, before taking any medication, or if you have or suspect you might have a health problem. *Any Free USPS Ground Shipping Offer Applies to Continental U.S. Locations Only