Camphor is a powder that originally came from the bark and wood of the camphor tree.
Today, most camphor is synthetic. It's in some products that are applied to the skin, including FDA-approved treatments. It's a common ingredient in remedies applied to the skin for cough and skin irritation.
In animal studies, sea buckthorn has also shown some promise in slowing the growth of tumors and ulcers. But more studies are needed.
Optimal doses of sea buckthorn have not been set for any condition. Quality and active ingredients in supplements may vary widely. This makes it very hard to set a standard dose.
Can you get sea buckthorn naturally from foods?
Sea buckthorn fruit or fruit juice can be found in certain jellies, juices, purees, sauces, drinks, and liquors. People do not usually eat the berries raw because they are acidic.
What are the risks of taking sea buckthorn?
As a food, sea buckthorn is probably safe. Some research suggests it may also be safe when taken up to six months as a medicine.
Side effects. Very few side effects from sea buckthorn have been reported. In some people who had high blood pressure who were using sea buckthorn, swelling, headache, dizziness and palpitations were noted. When used on the skin to treat burns, it sometimes caused a rash.
Interactions. Combining sea buckthorn with blood-thinning drugs or supplements could raise your risk of bleeding.
Sea buckthorn may also interfere with certain medicines that treat heart rhythm problems, cancer, or autoimmune diseases.
Avoid using sea buckthorn if you are pregnant or breastfeeding. There is not enough information to prove its safety.
The FDA does not regulate supplements. Be sure to tell your doctor about any supplements you're taking, even if they're natural. That way, your doctor can check on any potential side effects or interactions with medications, foods, or other herbs and supplements. He or she can let you know if the supplement might raise your risks.