This page has two jobs. First, it explains the one ingredient in the box we write about, what it is, and what the research does and does not say about the compounds in it. Second, it lists the headlines we run, tells you which ones overreach, and separates the few things that are genuinely supported from the many that are not.
You almost certainly arrived here from an advertisement. The headline you clicked was written by us and paid for by us to appear next to real news stories. It was designed to make you stop scrolling, and some of our headlines lean harder on a story than the evidence does.
Everything on this site is a paid advertisement for a product sold by someone else. If you buy through a link on any of our pages, we may be paid a commission. That is the reason this site exists.
The product is Matcha Sticks from Rishi Tea & Botanicals of Milwaukee, Wisconsin: seven single-serve sticks, each holding 2 grams of organic Japanese green tea ground to a powder. It is a tea, not a supplement. No study has ever tested this box, and nothing in it is a substitute for your own clinician or for anything your clinician has given you.
If you have been fishing for names or losing track of your keys, the single most useful thing you can do is tell your clinician what you have noticed, write things down in one place, and keep seeing people. That costs you nothing from us, and it is worth more than anything we write about.
| The headline as you saw it | What is actually behind it |
|---|---|
| "The Shop Slate by My Kitchen Door, and a Green Stick in My Apron" | Story, not a claim The box is real; Adele, Fumiko, the corner store and the neighbors are composites, and the column is built on the seller's listing, the label in the seller's product photo, its reviews and its shipping and satisfaction policy. |
| "Two quiet minutes at ten o'clock" | Story, not a claim A description of a routine, not an effect of the tea. The column says plainly that the slate, the people and less coffee did the work it describes, and that the bowl only gave the writer a time to sit down. |
| "One ingredient: organic Japanese green tea" | Broadly supported The listing gives one ingredient, "Organic Japanese green tea," from Kagoshima, Kyushu Island, Japan, with Certified Organic and Direct Trade badges, checked in October 2026. |
| "54 mg of caffeine per stick" | Broadly supported Printed on the back of the 30-stick bag shown in the seller's main product photo, along with 65 mg of amino acids including L-theanine and 170 mg of total polyphenols per stick. The web listing marks the caffeine level "High" and puts an average 8 oz coffee at about 90 to 120 mg. |
| "About $3.64 a stick" | Broadly supported $25.50 for seven sticks, as listed in October 2026. Standard shipping is $8 flat to the contiguous United States on an order this size, which raises a single box to about $4.78 a stick. |
| "Studies on tea and attention" | Exaggerated The studies we describe are small, mostly single doses, mostly funded or co-authored by tea companies, and they tested measured amounts of L-theanine, caffeine or a decaffeinated catechin extract. None tested this stick, and the stick does not print how much of its 65 mg of amino acids is L-theanine. |
Because stories stop the scroll better than ingredient lists do. That is exactly the problem. We keep the honest version of every claim here so you can compare it with the ad side by side.
Our column is careful not to call the seller's policy a refund promise, because the seller's page does not use that word. It says that if you are not satisfied with a product, or feel its quality is less than expected, you should contact customer service within 45 days of your purchase date.
The policy covers original end-user purchasers in the United States who bought from Rishi or an authorized seller, is decided case by case, may require proof of purchase or photos, and can be changed without notice. The refund policy excludes sale items and gift cards. If any of that matters to you, call 414-747-4001 before ordering.
The only ingredient · A tea, not a supplement
Green tea leaves that are shaded before harvest, steamed, dried and stone-ground into a fine powder. Because you drink the whole powdered leaf instead of steeping and discarding it, matcha carries more caffeine and more of the leaf's other compounds than an ordinary cup of green tea. The seller calls this one ceremonial first flush matcha from Kagoshima.
Small single-dose studies · Not this stick
In a placebo-controlled study of 27 volunteers, 50 mg of caffeine with 100 mg of L-theanine was associated with faster and more accurate attention-switching an hour later. One dose, one day, ages not given, authors from a tea company. A stick prints 54 mg of caffeine but only 65 mg of all amino acids together, so it does not match the study dose.
Small studies · Measured amounts
A single dose in Japanese adults aged 50 to 69 was associated with faster reaction times on an attention task; the summary gives neither the dose nor the number of people. Four weeks of 200 mg a day, taken as a supplement by 30 healthy adults with an average age of 48, was followed by better verbal-fluency scores, mainly in those who started lower. Neither study used tea.
Decaffeinated extract · Contrast only
A concentrated, decaffeinated catechin extract of 336 mg was studied in Japanese adults aged 50 to 69, with fewer errors on an attention test after one dose and faster responses on a working-memory task after twelve weeks. We mention it only because it is not what is in this box; nobody should credit a stick of matcha with an extract's study.
One plant, a lot of caffeine for a tea, a handful of small studies on compounds the plant contains, and no study on this box. A morning bowl of green tea, not a plan for names or keys.
The web listing marks the caffeine level "High" and does not print a number. The back of the bag in the seller's main product photo prints 54 mg of caffeine per stick, which is roughly half the seller's own figure for an average cup of coffee. That bag is the 30-stick size; the seven-stick box holds the same 2-gram sticks.
Treat it as a morning drink. If caffeine keeps you up, makes your heart race or upsets your stomach, this is not your tea, and if you already drink coffee, count both.
None of our ads should be your health information. If you have noticed changes in finding names, keeping track of things or following conversations, the person to talk to is your clinician, and the things to bring are your examples and anyone who knows you well. See your clinician promptly if you get lost in a familiar place, have trouble with routine tasks you have done for years, or if someone close to you is worried.
If you take anything daily, show the box to your pharmacist before adding green tea, because the federal green tea page notes that green tea may reduce the effectiveness of some medicines, and that liver problems have been reported mainly with concentrated green tea extracts. If you are expecting or nursing, ask first.
The one ingredient printed on the listing, with what the bag in the seller's photo says is in each stick.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This information does not constitute medical advice and it should not be relied upon as such. This product is not a substitute for medication or other treatment prescribed by a physician or health care provider. Consult your doctor before starting any dietary supplement.
Nobody honest can promise that, and the seller does not claim it. The research on tea compounds is small, mostly single doses of measured amounts, and none of it tested this stick. Our column credits the writer's slate, her people and drinking less coffee, not the tea.
54 mg per stick, printed on the back of the bag in the seller's product photo; the listing marks it "High." The seller puts an average 8 oz coffee at about 90 to 120 mg.
No. The seller's directions are one stick in a bottle of cold water, shaken, with "no sifting or whisking necessary." Our writer whisks because she likes the ritual.
The seller asks you to contact customer service within 45 days of purchase if you are not satisfied, and decides case by case. Sale items and gift cards are excluded from refunds.
Rishi Tea & Botanicals, 185 S. 33rd Court, Milwaukee, Wisconsin 53208. Phone 414-747-4001, weekdays 9 to 5 Central. It ships to the contiguous United States and Canada.
No numbered sources are cited on this page.
This guide is part of the advertising page it links from. It exists because the ad that brought you here did not tell you the whole story.
If you remember nothing else: this is a box of seven green tea sticks with one ingredient and a real dose of caffeine, the research on its compounds is small and never tested this box, its satisfaction policy is decided case by case, and your clinician and pharmacist outrank all of us.