Browse Side Effects

Potential for adverse effects depends on the root species. Some may have hepatotoxic, neurotoxic, or hormone-modulating...

Causes or contributes to Stinging.

Causes or contributes to Stomach Irritation.

Can cause dark green or black stools, which is harmless but may be alarming.

Causes or contributes to Sun Sensitivity.

Can increase heart rate and cause heart palpitations.

Some bioactive peptides may influence hormone signaling (e.g., growth hormone-releasing peptides); misuse could disrupt...

Some individuals may experience increased thirst or mild constipation.

Very rare reports of increased thirst or mild constipation.

Causes or contributes to Thyroid Dysfunction.

Concerns exist that soy isoflavones may interfere with thyroid hormone synthesis in susceptible individuals with pre-exi...

Some individuals may experience a tingling sensation (paresthesia) after taking beta-alanine, which is generally harmles...

Causes or contributes to Tooth Sensitivity.

Liquid formulations can stain teeth if not properly administered (e.g., with a dropper to the back of the mouth).

In topical formulations, may cause skin dryness, redness, or irritation in sensitive individuals.

Can cause skin irritation, burning sensation, and characteristic brown stains on skin and fabrics.

Redness, burning, or dermatitis with prolonged use of iodine antiseptics.

Xylitol is highly toxic to dogs, causing a rapid release of insulin leading to severe hypoglycemia, and at higher doses,...

Causes or contributes to Unknown Composition.

Some products may have a slight fishy or bitter aftertaste, though often masked in formulations.

Some users report a mild, lingering taste when mixed in certain beverages.

Some lower-quality hydrolysates may have a lingering taste or odor, though Peptan is generally marketed as tasteless and...

Some lower-quality products may have a noticeable taste or odor, though high-quality peptides are generally neutral.

High doses of riboflavin can cause urine to turn bright yellow, which is harmless.