The CORTEX buying guide
CLEAR or Hydration?
CLEAR contains caffeine, L-theanine, and Alpha-GPC. Hydration is a lemonade electrolyte mix with no caffeine ingredient listed. Here is what is in each tub, and what a serving costs.
At a glance
Compare the everyday details.
| Detail | CORTEX CLEAR | CORTEX Hydration |
|---|---|---|
| Formula | Caffeinated powder with L-theanine, Alpha-GPC, and B vitamins | Electrolyte powder with potassium, sodium, magnesium, calcium, and B vitamins |
| Serving size | 2 scoops (7.5g) | 1 scoop (5.4g) |
| Servings per tub | 20 full servings, or 40 one-scoop portions | 30 servings |
| Caffeine | 200mg per two-scoop serving; 100mg per scoop | No caffeine ingredient listed on the label |
| Calories | 10 per two-scoop serving | 10 per scoop |
| Total carbohydrates | 2g per two-scoop serving | 2g per scoop |
| Flavors | Sour Grape, Sour Gummi Worm, Sour Candy | Lemonade |
| Sweetener listed | Sucralose | Sucralose |
| One-time price, one tub | $32.99 | $29.95 |
| Approximate cost per full serving | $1.65 | $1.00 |
Prices are in USD for a single tub purchased once, before any tax, shipping, discounts, or subscription savings. Per-serving costs are rounded. Check the product page for the available offer.
Inside the tub
Two different formulas.
CLEAR: caffeine and more
A full two-scoop serving lists 200mg caffeine from green tea, 100mg L-theanine, 300mg Alpha-GPC, 1,000mg L-arginine HCl, 600mg inositol, 50mg Asian ginseng extract, and 5mg black pepper extract.
It also contains thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B12, and pantothenic acid. One scoop contains half the listed two-scoop amounts.
Read all CLEAR amounts and flavor labels →Hydration: four electrolytes
One scoop lists 200mg potassium, 100mg sodium, 20mg magnesium, and 40mg calcium, each supplied as a citrate.
It also contains thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B12, and pantothenic acid. The label directs you to mix one scoop with 14–20 fl oz of water.
See the complete Hydration label →Before you choose
Common questions.
Which one should I choose?
If you are looking for a caffeinated powder, compare CLEAR’s formula and serving size with your preferences. If you are looking for an electrolyte drink without a listed caffeine ingredient, look at Hydration. The ingredient lists above make the distinction concrete.
Does a CLEAR tub have 20 or 40 servings?
The Supplement Facts label defines a serving as two scoops, with 20 servings per tub. Using one scoop gives 40 smaller portions, each with 100mg caffeine and half of the other listed amounts. At the single-tub price, a one-scoop portion costs approximately $0.82.
Are these the same product in different flavors?
No. CLEAR and Hydration have different ingredient lists and serving sizes. CLEAR comes in three sour flavors; Hydration comes in Lemonade.
Where can I check sweeteners and other ingredients?
Both products list sucralose. CLEAR’s other ingredients vary by flavor. Read the three CLEAR labels and the complete Hydration label for the full lists, and check the label on the product you receive.
Are independent lab reports available here?
No third-party lab reports or per-batch Certificates of Analysis are currently published on this site. Our transparency page distinguishes the product labels from lab documentation and provides a contact for lot-specific questions.
Check the source labels.
This comparison uses CORTEX’s published product labels and current site pricing. Label details reviewed September 29, 2026.
