We make sustainable stationery and lifestyle goods to celebrate science.



New Arrivals
- 12 oz Flasks
- Graphic Tees
- Pens & Pencils

Black Paper Notebooks
Find notebooks with black pages and a range of compatible pens for black paper.

Selected Specimens
Supernova Gel Pens (Pack of 10)$ 15.95
Take beautiful notes or illustrate illuminated scenes in the dark. These gel pens are specially formulated to work with the Dark Matter notebooks – they write in vibrant color o...
Linguistics Dark Analysis A5 Softcover Notebook$ 19.95
Immerse yourself in the world of language - Adorned with Chinese characters, Arabic script, Egyptian hieroglyphs, Hebrew, Phoenician, Greek, and more, this notebook is a unique ...
Ready to Launch Dark Matter Notebook$ 29.95
Lights illuminate the Artemis 1 rocket as we prepare to set foot on the moon once more. Each cover in the Dark Matter series celebrates the beauty found in darkness and the sce...


Our retail store is open!
Come visit the Cognitive Surplus Shop in Downtown Redmond
Shop in Person
Store Location & Hours
436 Southwest 6th St, Redmond, Oregon
Mon - Sat: 10am - 6pm
Sun: 10am - 5pm

Peer Reviews
Let customers speak for us
from 5643 reviews
I really adore the design on this notebook and the paper is high quality! It's a fun change from the traditional notebooks I am used to and the alternating between dot grid and lined pages allows me to have graphs on one page and formal notes on the other.

I love the quirky cards offered by Cognitive Surplus. This card, the Lady Crab Speciment Card, caught my eye because it’s neat and I now have it framed on my desk because I am a crabby lady. Though I framed this card, i have purchased several others to give to others and the quality is great - quality card stock and envelopes. Great purchase.

The NASA shirt is great quality!

I am super pleased with my purchases. the esthetic is great, the gel pens write vividly. the customer service is good as well. I had one pen in the pack that didn't write, after letting them know, it was promptly replaced. I have no complaints and plan to make some more purchases.

I’ll be using this to carry my knitting and crochet bits and bobs with me. I love mixing my background with my hobbies.

This was a gift for my partner and he loved it! Beautifully made and science oriented. A perfect gift!

Love this bag! Well made and beautiful colors. I’ll definitely be getting a couple more to sport my science background when carrying projects, etc around town.

The perfect way to ask an astronerd out!

I have been wanting to find a brain scarf for most of my neuro career! I finally found it! Soft cotton feel, great design, high quality! I love it!!

Surprised at the great size of this mug! It also is dishwasher and microwave safe! Love it!

This is a cute reversible bag with neuroanatomy print on the inside (or outside)! I love grabbing it to tote some things to work. High quality and love this impulse buy I made!

Really high quality desk pad and it feels so good to work on! I love the neuroanatomy background! I may buy one for work too! Love it!

It’s exactly like the picture. Durable and so cute. I’m in neuro and am obsessed with all things brains so I had to get it and I’m definitely not disappointed.

The colors are great, the designs are crisp, and I enjoy just looking a t this hardcover notebook.

Always good quality from these peeps.
Love the bottle

Newsletter
Sign up for exclusive deals and early access to new products.
































































