Unraveling the Mystique of Sun Opener Herb of the Week

TL;DR: Sun Opener (Heimia salicifolia), also called Sinicuichi, is a shrub that grows from the southern US down to Argentina and was traditionally used by the Aztecs and other native peoples as a fermented brew. Its alkaloids, including cryogenine and lyfoline, are tied to its known sound-distorting effects, so it's a plant to take slowly and carefully.

Sun Opener is one of the stranger plants on our shelf, and one of the ones people know least about. It isn't flashy like blue lotus or kanna, but it has a real history and a very particular reputation. Here's what we know about it, where it comes from, and how people use it today.

What Sun Opener is

Sun Opener, also known as Heimia salicifolia, is a perennial shrub native to the Americas, growing from the southern United States all the way down to Argentina. It's also commonly known by its Nahuatl name, Sinicuichi, and it has been part of traditional herbal practice in Central and South America for centuries. It's in the loosestrife family, has narrow willow-like leaves (that's what salicifolia means) and small yellow flowers.

How it was used historically

Sun Opener's history is deeply rooted in the indigenous cultures of Central and South America. The Aztecs and other native peoples used it for its psychoactive effects and for divination. The name comes from the belief that the plant had the power to open the sun, and it was associated with the sun deity.

It was usually taken as a fermented brew. Leaves were wilted, soaked in water and left in the sun to ferment for a day or so. That brew was believed to sharpen memory, bring a sense of euphoria and even let people recall events from long ago, sometimes from before they were born. That last part is folklore, but it tells you what people valued it for.

The compounds in it

The main active compounds in Sun Opener are a group of alkaloids, including cryogenine (sometimes called vertine) and lyfoline. These alkaloids are thought to be behind the plant's best-known effect, which is auditory. Sounds can seem to come from farther away or closer than they are, or pick up an echo-like quality. That's the thing people describe most, and it's pretty unique among the herbs we carry. We go deeper on this in our Sun Opener compounds post.

How people use it now

In modern herbal practice Sun Opener is mostly used for its calming, mildly psychoactive character, and people say it helps with relaxation and a clear head. The leaves are usually dried and brewed into tea or extracted into tinctures. Some people still make the traditional sun-fermented version at home.

For tea, most people start with a small amount of dried leaf, steep it covered for 10 to 15 minutes and sip it slowly. It's bitter, so a little honey or mint helps. Our Sun Opener tincture usage guide has more on the liquid form.

Safety and what to keep in mind

Traditional use suggests Sun Opener is relatively safe, but it's a potent herb and you should be careful with it. Because of the auditory effects and other changes in perception, don't use it before driving or anything else where you need all your senses. It hasn't been studied much, so possible interactions with medications or health conditions aren't well understood. Check with a healthcare provider before you start any new herb, this one included. More detail is in our Sun Opener side effects guide.

Common questions

Does Sun Opener cause visual effects?
Its reputation is mostly about sound, not visuals. Most people describe changes in how things sound and a calm mood.

Is fermenting it necessary?
No. Plain tea and tinctures are how most people use it now. Fermentation is the traditional method.

Can I mix it with other herbs?
Try it on its own first so you know how it hits you before you blend it with anything.

Sun Opener has a fascinating history as a plant indigenous cultures used for its unusual effects, and people are still exploring it today for mood and mental calm. Our Sun Opener products are here. The tincture listing isn't currently available online, but you can find the Organic Sun Opener Loose Leaf Tea with its current description and options.

Read more about Sun Opener: