Copper supplements with the fewest additives

Copper may fight anemia, improve bone strength, and more. However, many copper supplement brands contain more than just copper. For example, silica or silicon dioxide are often added to prevent caking, magnesium stearate or stearic acid for easier manufacturing, and hypromellose (hydroxypropyl methylcellulose) as an emulsifier or thickener.

I try to avoid these additives because they may have questionable health effects. If you want to do the same, my recommendations for the purest copper supplements are:

Suggestion for minimal-additive copper capsule:

Vitamin Shoppe Copper (Capsules)
Positives:
  • silica-free / silicon-dioxide-free
  • stearic acid-free / magnesium stearate-free
  • hypromellose-free / hydroxypropyl methylcellulose-free
Negatives:
(none)
All ingredients:

Copper (as copper gluconate), rice flour, gelatin.

Suggestions for pure copper liquids/colloids:

Eidon Mineral Supplements Copper (Liquid)
Available on iHerb
Positives:
  • silica-free / silicon-dioxide-free
  • stearic acid-free / magnesium stearate-free
  • hypromellose-free / hydroxypropyl methylcellulose-free
Negatives:
(none)
All ingredients:

Copper, purified water.

Purest Colloids MesoCopper Colloidal Copper (Liquid)
Positives:
  • silica-free / silicon-dioxide-free
  • stearic acid-free / magnesium stearate-free
  • hypromellose-free / hydroxypropyl methylcellulose-free
Negatives:
(none)
All ingredients:

Copper, ultrapure water.

Silver Mountain Minerals Ultra-Colloidal Copper (Liquid)
Positives:
  • silica-free / silicon-dioxide-free
  • stearic acid-free / magnesium stearate-free
  • hypromellose-free / hydroxypropyl methylcellulose-free
Negatives:
(none)
All ingredients:

Copper, distilled water.

Good State Liquid Ionic Minerals Copper (Liquid)
Positives:
  • silica-free / silicon-dioxide-free
  • stearic acid-free / magnesium stearate-free
  • hypromellose-free / hydroxypropyl methylcellulose-free
Negatives:
(none)
All ingredients:

Copper, ionic catalyst.

Suggestion for copper gluconate powder:

PureBulk Copper Gluconate (Powder)
Available on PureBulk
Positives:
  • silica-free / silicon-dioxide-free
  • stearic acid-free / magnesium stearate-free
  • hypromellose-free / hydroxypropyl methylcellulose-free
Negatives:
(none)
All ingredients:

Copper gluconate.

A recent COA is available.


Other copper supplements

The following are other copper supplements I'm aware of, sorted alphabetically.

Name Ingredients
Allergy Research Group Copper Sebacate (Veggie Capsules)

Copper (as copper sebacate), hydroxypropyl methylcellulose, microcrystalline cellulose, dicalcium phosphate, silicon dioxide, magnesium stearate.

Bluebonnet Nutrition Chelated Copper (Veggie Capsules)

Copper (copper bisglycinate chelate), 100% kosher vegetable capsules, vegetable cellulose, vegetable magnesium stearate.

Douglas Labs Copper

Copper, cellulose, gelatin, vegetable stearate.

Natrol Copper (Capsules)

Copper (from copper gluconate), cellulose, gelatin, water, magnesium stearate, silica.

Nature's Life Copper Complex (Capsules)

Copper (from copper gluconate, citrate), cellulose, gelatin capsule and vegetarian magnesium stearate.

Nature's Plus Copper (Tablets)

Copper (as soy amino acid chelate), di-calcium phosphate, microcrystalline cellulose, stearic acid, magnesium stearate, pharmaceutical glaze and silica.

Nutricology Copper Sebacate (Veggie Capsules)

Copper (as copper sebacate), hydroxypropyl methylcellulose, microcrystalline cellulose, dicalcium phosphate, silicon dioxide, magnesium stearate.

Solaray BioCitrate Copper (Veggie Capsules)

Copper (as copper citrate), whole rice concentrate, vegetable cellulose capsule, dandelion root, watercress leaf, horsetail herb, yellow dock root, magnesium stearate and silica.

Solaray Copper (Capsules)

Copper (as copper amino acid chelate), gelatin capsule, rice flour, magnesium stearate and silica.

Solgar Chelated Copper (Tablets)

Copper (as copper glycinate amino acid chelate), dicalcium phosphate, microcrystalline cellulose, vegetable cellulose, vegetable magnesium stearate.

Source Naturals Copper Sebacate (Tablets)

Copper (as copper sebacate), microcrystalline cellulose, dibasic calcium phosphate, stearic acid, silica, and magnesium stearate.

Swanson Premium Copper (Tablets)

Copper (as copper chelate), calcium carbonate, microcrystalline cellulose (plant fiber), stearic acid, magnesium stearate, croscarmellose sodium, food glaze.

Swanson Ultra Albion Chelated Copper (Capsules)

Copper (from TRAACS® copper glycinate chelate), rice flour, gelatin, magnesium stearate, maltodextrin.

Thorne Research Copper Picolinate (Veggie Capsules)

Copper (as copper picolinate), aspartic acid, hypromellose (derived from cellulose) capsule, leucine, silicon dioxide.

Twinlab Copper Caps (Capsules)

Copper (from copper gluconate), potato starch, gelatin, medium chain triglycerides, magnesium stearate, silica.


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