BioStacks
Pure Encapsulations

Disc-Flex

2 Capsules · 60 servings · $1.92/serving

iHerbAmazon
37 / 100Poor

Best for

Skin

Score Breakdown

Formulation
36
Safety
100
Final score
37/100

Ingredients (12)

Hyaluronic Acid

100%

Dose

50 mg

Target

50–200 mg

Form

Standard

Vitamin D

40%

Dose

400 IU

Target

1000–5000 IU

Form

Premium

Glucosamine HCl

50%

Dose

500 mg

Target

1000–1500 mg

Form

—

BioCell Collagen hydrolyzed Collagen Complex

50%

Dose

0.5 g

Target

1–3 g

Form

Standard

Grape (Vitis vinifera) extract

33%

Dose

50 mg

Target

150–600 mg

Form

—

Other Ingredients (2)

Ascorbyl PalmitateAntioxidant

Fat-soluble form of vitamin C used as preservative

Capsule ShellCapsule

Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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