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Do diamine oxidase (DAO) supplements for histamine intolerance really work?

DAO supplement info for histamine intolerance, including diamine oxidase safety, evidence from clinical studies, and dosage.

Person in Pink Shirt Scratching Arm

Which vitamins and supplements are good for acne, and are there any that make it worse?

Information about supplements for acne and clearer skin. Plus, find out which vitamins and supplements can make acne worse.

Supplements for Acne and Clear Skin -- Woman taking fish oil supplement

Dimethyl sulfoxide (DMSO): Health Effects & Safety Concerns

Dimethyl sulfoxide (DMSO) is a colorless liquid promoted for osteoarthritis, interstitial cystitis, tennis elbow, rotator cuff tendonitis, wound healing, and many other conditions. Find out if it works and if it's safe.

Man applying DMSO gel to knee

Estrogen Creams for Wrinkles?

Find out if estrogen creams can help reduce wrinkles, whether they are safe, and how "prescription" estriol and estradiol creams and gels differ from those sold over-the-counter.

Older woman applying estriol cream for wrinkles

Do supplements like Marine-D3 with Ecklonia cava extract live up to anti-aging claims?

Learn about the evidence for Marine-D3, a supplement from Marine Essentials that contains Seanol, including evidence from clinical studies on aging.

Marine D3 2025 2

Do sea moss and carrageenan have health benefits? Are there risks?

Sea moss is promoted for thyroid health, boosting immunity, improving gut health, and other uses. Find out if it works and learn about possible side effects of sea moss and its constituent, carrageenan.

Sea moss in a clear bowl next to a wooden spoon on the countertop

Is it okay to buy supplements as tablets? I've heard that tablets may go through our system without dissolving. Is there any way to know whether tablets will properly dissolve?

Find out if supplements taken as tablets dissolve well in the body, including our test results on disintegration.

Tablets

Do any supplements help for varicose veins or chronic venous insufficiency?

Find out which supplements help for varicose veins and chronic venous insufficiency, including citrus bioflavonoids and grape seed extract.

Varicose Veins

Does Prelief Help with Heartburn or Bladder Pain Caused By Acidic Foods?

Learn about Prelief, a product promoted to reduce acidity from foods and drinks that may cause bladder pain, frequent urination, heartburn, or indigestion. Discover what Prelief claims to do, the clinical evidence supporting its use, and important safety considerations.

Bottle of Prelief Caplets and Container of Prelief Powder

Does Bacopa extract improve memory, mood, or sleep? Is it safe?

Find out if bacopa improves memory and cognition, mood or sleep, and whether it's been shown to be helpful in people with Alzheimer's disease or dementia. Plus, learn about the safety and common side effects of bacopa.

Bacopa for Memory and Cognition -- Bacopa leaves and powder
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