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Compass Laboratory Methylene Blue 1% USP-grade solution, 50 mL amber glass dropper bottle

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Compass Laboratory – USP-Grade Methylene Blue, DMSO & Liquid Supplements

  • Laboratory
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    • Methylene Blue
    • Liquid Supplements
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Compass Laboratory dropper bottles of methylene blue and liquid supplements on a dark blue background

USP-Grade Methylene Blue, DMSO & Liquid Supplements

New look, same trusted science. Every bottle is made in Mena, Arkansas and lot-tracked from batch to bottle.

Shop All Products
  • Compass Laboratory Methylene Blue 1% USP-grade solution, 50 mL amber glass dropper bottle

    Methylene Blue 1%

    Methylene Blue 1%

    4.93 / 5.0

    (455) 455 total reviews

    Regular price $30.90
    Regular price Sale price $30.90
  • Compass Laboratory Methylene Blue 1% USP-grade solution refill, 237 mL amber glass bottle

    Methylene Blue 1% Refill (237 mL)

    Methylene Blue 1% Refill (237 mL)

    4.92 / 5.0

    (80) 80 total reviews

    Regular price $147.33
    Regular price Sale price $147.33
  • Compass Laboratory 99.9%+ pure USP-grade DMSO (dimethyl sulfoxide)

    99.9%+ Pure DMSO (Dimethyl Sulfoxide)

    99.9%+ Pure DMSO (Dimethyl Sulfoxide)

    4.82 / 5.0

    (28) 28 total reviews

    Regular price $36.00
    Regular price Sale price $36.00
  • Compass Laboratory Methylene Blue 0.5% USP-grade solution, 50 mL amber glass dropper bottle

    Methylene Blue 0.5%

    Methylene Blue 0.5%

    5.0 / 5.0

    (14) 14 total reviews

    Regular price $29.58
    Regular price Sale price $29.58
  • Compass Laboratory ashwagandha liquid drops dietary supplement, 2 fl oz dropper bottle

    Ashwagandha Liquid Drops

    Ashwagandha Liquid Drops

    5.0 / 5.0

    (6) 6 total reviews

    Regular price $19.95
    Regular price Sale price $19.95
  • Compass Laboratory liquid iodine drops dietary supplement, 250 mcg per serving

    Liquid Iodine Drops

    Liquid Iodine Drops

    5.0 / 5.0

    (2) 2 total reviews

    Regular price $19.95
    Regular price Sale price $19.95
  • Compass Laboratory two-part water treatment kit, 2 x 50 mL bottles

    Water Purification Kit

    Water Purification Kit

    5.0 / 5.0

    (4) 4 total reviews

    Regular price $35.00
    Regular price Sale price $35.00
  • Compass Laboratory gymnema leaf extract liquid dietary supplement, 100 mg/mL

    Gymnema Leaf Extract 100 mg/mL

    Gymnema Leaf Extract 100 mg/mL

    Regular price $19.95
    Regular price Sale price $19.95
  • Compass Laboratory zinc sulfate liquid dietary supplement, 7.5 mg per 2 mL, 50 mL bottle

    Zinc Sulfate Liquid 7.5 mg/2 mL

    Zinc Sulfate Liquid 7.5 mg/2 mL

    Regular price $19.95
    Regular price Sale price $19.95
  • Compass Laboratory propylene glycol and vegetable glycerin 2-pack, USP grade, 500 mL bottles

    Propylene Glycol and Vegetable Glycerin 2 Pack

    Propylene Glycol and Vegetable Glycerin 2 Pack

    5.0 / 5.0

    (2) 2 total reviews

    Regular price $23.54
    Regular price Sale price $23.54
  • Compass Laboratory vegetable glycerin USP grade 2-pack, 500 mL bottles

    Vegetable Glycerin 2 Pack

    Vegetable Glycerin 2 Pack

    Regular price $24.48
    Regular price Sale price $24.48
  • Compass Laboratory propylene glycol USP grade 2-pack, 500 mL bottles

    Propylene Glycol 2 Pack

    Propylene Glycol 2 Pack

    5.0 / 5.0

    (1) 1 total reviews

    Regular price $22.57
    Regular price Sale price $22.57
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Compass Laboratory products on a dark background

The Compass Commitment

At Compass Laboratory, your satisfaction isn't just a promise. It's our standard. Every product is made with care, held to strict quality standards, and lot-tracked from batch to bottle, so you can order with confidence. And with our 30-Day Money-Back Guarantee, every purchase is risk-free.

Shop NowOur Standards & COAs

Best Sellers

Our customers' favorites, made in Mena, Arkansas and lot-tracked from batch to bottle.

  • Compass Laboratory Methylene Blue 1% USP-grade solution, 50 mL amber glass dropper bottle

    Methylene Blue 1%

    Methylene Blue 1%

    Regular price $30.90
    Regular price Sale price $30.90
  • Compass Laboratory Methylene Blue 1% USP-grade solution refill, 237 mL amber glass bottle

    Methylene Blue 1% Refill (237 mL)

    Methylene Blue 1% Refill (237 mL)

    Regular price $147.33
    Regular price Sale price $147.33
  • Compass Laboratory 99.9%+ pure USP-grade DMSO (dimethyl sulfoxide)

    99.9%+ Pure DMSO (Dimethyl Sulfoxide)

    99.9%+ Pure DMSO (Dimethyl Sulfoxide)

    Regular price $36.00
    Regular price Sale price $36.00
  • Compass Laboratory Methylene Blue 0.5% USP-grade solution, 50 mL amber glass dropper bottle

    Methylene Blue 0.5%

    Methylene Blue 0.5%

    Regular price $29.58
    Regular price Sale price $29.58
View all

Compass Solutions – Lab & In-Home Testing

Indicators and test kits from our sister brand, made for laboratory and in-home testing.

  • Compass Solutions Wide Range pH Indicator 4.0-10.0 Test Kit

    Water Test & Treat Bundle

    Sale

    Water Test & Treat Bundle

    Regular price $43.95
    Regular price $48.69 Sale price $43.95
    Sale
  • Compass Solutions Wide Range pH Indicator 4.0-10.0 Test Kit

    Wide Range pH Indicator Test Kit – 2-Pack

    Sale

    Wide Range pH Indicator Test Kit – 2-Pack

    Regular price $24.95
    Regular price $27.38 Sale price $24.95
    Sale
  • Compass Solutions Wide Range pH Indicator 4.0-10.0 Test Kit

    Compass Solutions Wide Range pH Indicator 4.0–10.0 Test Kit

    Compass Solutions Wide Range pH Indicator 4.0–10.0 Test Kit

    Regular price $13.69
    Regular price Sale price $13.69

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Important Information

*These statements have not been evaluated by the Food and Drug Administration. Our dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Chemical, solvent, and reagent products are not dietary supplements and are sold for their labeled uses only. Compass Solutions testing products are for laboratory and testing use only and are not for human or animal consumption. Information on this site is not medical advice; consult your healthcare professional before using any dietary supplement.

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