CHILE

Your eyes started drying out after forty-five.
The drops were never going to fix the gland.

Maqui berry  ·  Aristotelia chilensis  ·  Mechanism: lacrimal gland protection via delphinidins

The Mapuche people of south-central Chile have gathered the small, dark fruit of Aristotelia chilensis for centuries. They call it maqui.

The berries are eaten fresh, fermented into a drink called chicha de maqui, and used in traditional Mapuche medicine for fever, inflammation, and digestive illness. The naturalist Claudio Gay documented their use in his 1844 atlas, and in Chilean folk medicine the berries have also been noted for eye health.

Maqui grows wild from the Valparaiso region south to the temperate rainforests of Valdivia, where the Slow Food Foundation describes a tradition of walking to the trees at dawn to eat the berries while still cool and free of dust. The foundation lists maqui on its Ark of Taste, though it also notes that rising commercial demand now threatens both the forests and the Mapuche communities that have tended them.

The berry is roughly the size of a peppercorn, nearly black when ripe, with a flavor closer to blackberry than blueberry. Its deep pigment comes from an unusually high concentration of delphinidins, a class of anthocyanin found in many dark berries, and maqui carries at levels among the highest measured in any fruit.

The lacrimal glands above each eye produce the fluid that keeps the corneal surface wet, clear, and protected from debris. After midlife, and especially after menopause, output from those glands often drops, with observational research in postmenopausal women finding dry eye prevalence rates approaching forty percent.

The decline appears to be driven by oxidative stress in the gland itself, where reactive oxygen species accumulate with age and impair the secretory cells that produce tear fluid. In a 2014 animal study published in the Journal of Functional Foods, the specific maqui berry compound delphinidin-3,5-O-diglucoside suppressed that ROS accumulation in lacrimal tissue and restored tear secretion.

American wellness culture imported maqui as a generic antioxidant powder for smoothie bowls. It overlooked the specific compound that appears to reach the specific gland most women over fifty need working.

In a 2019 randomized, double-blind, placebo-controlled trial of seventy-four participants published in the Journal of Traditional and Complementary Medicine, 60 mg of standardized maqui berry extract taken daily for four weeks significantly increased lacrimal fluid production and reduced dryness symptoms versus placebo. An earlier pilot trial of thirteen participants, published in Panminerva Medica in 2014, confirmed that 60 mg sustained the improvement across sixty days while 30 mg did not.

The how-to

The studied form is a single daily capsule. No preparation, no timing tricks, roughly thirteen to fifteen dollars a month.

Look for a standardized maqui berry extract labeled MaquiBright or Delphinol, standardized to at least 25% delphinidins and 35% total anthocyanins. Life Extension's Tear Support with MaquiBright provides the studied 60 mg dose, thirty capsules per bottle.
Take one capsule daily before breakfast. The larger trial measured significant results at four weeks.
The pilot trial found that 60 mg held its effect through sixty days while 30 mg did not, so 60 mg appears to be the minimum effective dose. Freeze-dried maqui powder is widely sold but has not been studied at a standardized dose for tear production specifically.
No adverse reactions were reported in either trial and no drug interactions have been documented, though the overall safety data remains limited. If you are pregnant, nursing, or managing a chronic condition, consult your doctor before starting.

Tomorrow: Iceland and a fermented dairy that carries bacterial strains absent from every commercial yogurt on the American shelf.
The difference shows up in the gut, not on the label.

See you then.