← All brands · data verified 2026-07-18

Doctor's Best

Doctor's Best label-dose audit: 10 clinically dosed, 16 under clinical dose, 4 undisclosed — from NIH label data.

10 clinically dosed16 underdosed4 undisclosed

Ashwagandha (2)

Doctor's Best — Ashwagandha With Sensoril 125 mg250 mgDoctor's Best — Superior Sleep250 mg

Citrulline (2)

Doctor's Best — L-Citrulline Powder3 gDoctor's Best — Pure L-Ornithine Powder Unflavored

Collagen (11)

Doctor's Best — Calcium Bone Maker Complex with MCH-Cal and VitaMK7273 mgDoctor's Best — Collagen Types 1 & 3 1000 mg3 gDoctor's Best — Collagen Types 1 and 3 1000 mg3 gDoctor's Best — Collagen Types 1 and 3 500 mg2 g · blendDoctor's Best — Collagen Types 1 and 3 Powder Summer Peach Flavor12.6 gDoctor's Best — Fish Collagen with Naticol 5 g5 gDoctor's Best — Glucosamine Chondroitin MSM + Hyaluronic Acid1 gDoctor's Best — Hyal-Joint2 mgDoctor's Best — Hyaluronic Acid + Chondroitin Sufate1 gDoctor's Best — Hyaluronic Acid + Chondroitin Sulfate1 gDoctor's Best — Pure Collagen Types 1 and 3 Powder6.6 g

Creatine (3)

Doctor's Best — Pure Creatine Powder5 gDoctor's Best — Pure L-Arginine PowderDoctor's Best — Sustained plus Immediate Release L-Arginine 500 mg

Magnesium (9)

Doctor's Best — Brain Magnesium with Magtein 50 mg150 mgDoctor's Best — Calcium Bone Maker Complex300 mgDoctor's Best — CoQ10 L-Carnitine Magnesium200 mgDoctor's Best — High Absorption 100% Chelated Magnesium200 mgDoctor's Best — High Absorption Magnesium 100 mg200 mgDoctor's Best — High Absorption Magnesium 105 mg105 mgDoctor's Best — High Absorption Magnesium 200 mg200 mgDoctor's Best — High Absorption Magnesium Powder200 mgDoctor's Best — High Absorption Magnesium Powder Sweet Peach400 mg

Nicotinamide Riboside (1)

Doctor's Best — Best Energy Featuring Niagen150 mg

Nmn (2)

Doctor's Best — NMN + CoQ10300 mgDoctor's Best — NMN 12000 400 mg400 mg

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