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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 Dim Enhanced 30vc

Douglas Laboratories Dim Enhanced 30vc

Regular price $54.00

Regular price Sale price $54.00
Unit price per
Douglas Laboratories Dim Enhanced 60vc

Douglas Laboratories Dim Enhanced 60vc

Regular price $99.20

Regular price Sale price $99.20
Unit price per
Douglas Laboratories E-400 100sg

Douglas Laboratories E-400 100sg

Regular price $46.80

Regular price Sale price $46.80
Unit price per
Douglas Laboratories Fiber-Plex 120

Douglas Laboratories Fiber-Plex 120

Regular price $28.60

Regular price Sale price $28.60
Unit price per
Douglas Laboratories Free Form Amino Acids 100c

Douglas Laboratories Free Form Amino Acids 100c

Regular price $29.60

Regular price Sale price $29.60
Unit price per
Douglas Laboratories GABA 500mg 60c

Douglas Laboratories GABA 500mg 60c

Regular price $24.60

Regular price Sale price $24.60
Unit price per
Douglas Laboratories GI Digest 90c

Douglas Laboratories GI Digest 90c

Regular price $56.00

Regular price Sale price $56.00
Unit price per
Douglas Laboratories Ginkgo Biloba Max-V 60c

Douglas Laboratories Ginkgo Biloba Max-V 60c

Regular price $29.80

Regular price Sale price $29.80
Unit price per
Douglas Laboratories Glucosamine + MSM Forte 120c

Douglas Laboratories Glucosamine + MSM Forte 120c

Regular price $60.60

Regular price Sale price $60.60
Unit price per
Douglas Laboratories Glucosamine Plus 120vc

Douglas Laboratories Glucosamine Plus 120vc

Regular price $51.20

Regular price Sale price $51.20
Unit price per
Douglas Laboratories Glucosamine Plus Extra Strength 90c

Douglas Laboratories Glucosamine Plus Extra Strength 90c

Regular price $53.20

Regular price Sale price $53.20
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 $43.60

Regular price Sale price $43.60
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 $34.40

Regular price Sale price $34.40
Unit price per
Douglas Laboratories Hair, Skin and Nails Plus Formula 100c

Douglas Laboratories Hair, Skin and Nails Plus Formula 100c

Regular price $37.20

Regular price Sale price $37.20
Unit price per
Douglas Laboratories Hawthorne Max-V 60c

Douglas Laboratories Hawthorne Max-V 60c

Regular price $22.80

Regular price Sale price $22.80
Unit price per
Douglas Laboratories Hyaluronic Acid 60c

Douglas Laboratories Hyaluronic Acid 60c

Regular price $45.40

Regular price Sale price $45.40
Unit price per
Douglas Laboratories Hydrolyzed Collagen+ 140g

Douglas Laboratories Hydrolyzed Collagen+ 140g

1 total reviews

Regular price $53.00

Regular price Sale price $53.00
Unit price per
Douglas Laboratories Inositol 100c

Douglas Laboratories Inositol 100c

Regular price $35.20

Regular price Sale price $35.20
Unit price per
Douglas Laboratories K2-D3 with Astaxanthin 30c

Douglas Laboratories K2-D3 with Astaxanthin 30c

1 total reviews

Regular price $42.80

Regular price Sale price $42.80
Unit price per
Douglas Laboratories Krill Oil 60sg

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Douglas Laboratories Krill Oil 60sg

Regular price $80.60

Regular price Sale price $80.60
Unit price per

Sold out
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 $29.80

Regular price Sale price $29.80
Unit price per
Douglas Laboratories L-Carnosine 500mg 30c

Douglas Laboratories L-Carnosine 500mg 30c

Regular price $39.00

Regular price Sale price $39.00
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 $49.00

Regular price Sale price $49.00
Unit price per
Douglas Laboratories L-Methionine 60c

Douglas Laboratories L-Methionine 60c

Regular price $28.00

Regular price Sale price $28.00
Unit price per
Douglas Laboratories L-Serine 60c

Douglas Laboratories L-Serine 60c

Regular price $50.80

Regular price Sale price $50.80
Unit price per
Douglas Laboratories L-Theanine 60c

Douglas Laboratories L-Theanine 60c

Regular price $37.20

Regular price Sale price $37.20
Unit price per
Douglas Laboratories L-Tryptophan 60c

Douglas Laboratories L-Tryptophan 60c

Regular price $52.20

Regular price Sale price $52.20
Unit price per
Douglas Laboratories Lipoic Acid 60c

Douglas Laboratories Lipoic Acid 60c

Regular price $32.60

Regular price Sale price $32.60
Unit price per
Douglas Laboratories Liposomal Glutathione 45 softgel capsules

Douglas Laboratories Liposomal Glutathione 45 softgel capsules

Regular price $83.20

Regular price Sale price $83.20
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 Cal/Mag/D 450ml (15oz)

Douglas Laboratories Liquid Cal/Mag/D 450ml (15oz)

Regular price $42.60

Regular price Sale price $42.60
Unit price per
Douglas Laboratories Liquid Magnesium 8fl. oz (240ml)

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

Regular price $35.40

Regular price Sale price $35.40
Unit price per
Douglas Laboratories Liquid Vitamin D3 30ml

Douglas Laboratories Liquid Vitamin D3 30ml

1 total reviews

Regular price $30.60

Regular price Sale price $30.60
Unit price per
Douglas Laboratories Lutein 90sg

Douglas Laboratories Lutein 90sg

Regular price $30.80

Regular price Sale price $30.80
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 $25.40

Regular price Sale price $25.40
Unit price per
Douglas Laboratories Magnesium Glycinate 240c

Douglas Laboratories Magnesium Glycinate 240c

Regular price $48.60

Regular price Sale price $48.60
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 $20.70

Regular price Sale price $20.70
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 $50.00

Regular price Sale price $50.00
Unit price per
Douglas Laboratories Melatonin 1mg 60T

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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 $43.60

Regular price Sale price $43.60
Unit price per
Douglas Laboratories Melatonin Prolonged Release 3mg 60T

Douglas Laboratories Melatonin Prolonged Release 3mg 60T

Regular price $19.80

Regular price Sale price $19.80
Unit price per
Douglas Laboratories Metabolic Lean 60c

Douglas Laboratories Metabolic Lean 60c

Regular price $55.40

Regular price Sale price $55.40
Unit price per
Douglas Laboratories Methyl B12 Plus 90 lozenges

Douglas Laboratories Methyl B12 Plus 90 lozenges

2 total reviews

Regular price $23.20

Regular price Sale price $23.20
Unit price per
Douglas Laboratories Methyl Folate 5 mg 60c

Douglas Laboratories Methyl Folate 5 mg 60c

Regular price $72.40

Regular price Sale price $72.40
Unit price per

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