Signature Supplements Hawthorne - Capsules Review

This product gives 800 milligrams of hawthorn a day, close to the 900 milligrams used in the trials. The human evidence for slowing aging or repairing cells is limited and mixed. In a six-month placebo-controlled trial of adults taking 900 milligrams of hawthorn fruit powder a day, 36 of 41 people finished. Facial skin hydration improved compared with placebo, but telomere length, a marker of cell aging, and most other skin measures did not change ^[1]. In 120 people with chronic heart failure, 900 milligrams a day of hawthorn extract for six months did not change oxidative stress or inflammation compared with placebo. Heart pumping function was slightly better, and more side effects were reported ^[2]. In a small lab test, blood cells taken after a single 1 gram dose showed about 36 percent fewer signs of damage to genetic material at one hour when later exposed to a damaging chemical, compared with cells taken before the dose ^[3]. Overall, no study shows that hawthorn reverses biological age. Animal and cell studies are never counted.

Only two of the ten panelists spoke about hawthorn, the main ingredient in this product, so the panel gives limited guidance as a group. One of them recommends hawthorn berry extract as a natural remedy for angina, irregular heartbeat, and various circulatory and respiratory problems, and suggests keeping it on hand, especially when traveling. The other uses hawthorn berries in a smoothie, which points to a whole berry form rather than an extract. Neither gave a dose, neither named anything to pair it with beyond the smoothie ingredients, and no one voiced a caution or said they stopped taking it.

The tier 5 grade does not fit studies that are mixed: one six-month trial found no change in telomere length but better skin hydration, the heart failure trial found no change in oxidative stress or inflammation, and a small lab test found less damage to genetic material, which together is thin, disagreeing evidence rather than proof it does not work. So it is graded Tier 4, as the studies disagree.