Publisher disclosure: EnergyDrops.com is published by the team behind Drizz, which is included in this comparison.
Someone emailed me last week asking a simple question: "What water enhancers actually have caffeine in them?" He'd gone to Target, stood in the drink mix aisle for twenty minutes, and left confused. Half the bottles said "energy." Half didn't. The caffeine amounts on the labels ranged from 60mg to 160mg. Nobody puts it on the front in a way that lets you compare.
I get it. The category is messy. So I pulled current labels from the brands people actually search for, sat down with my notes, and built the comparison I wish he'd had.
The direct answer
The water enhancers with caffeine, based on current product labels as of October 2026, are:
- MiO Energy (liquid): 60mg caffeine per squeeze, flavored, sucralose + acesulfame potassium
- Drizz Energy Drops (liquid): 65mg green tea caffeine per squeeze, no added flavor, a touch of sucralose balances caffeine's natural bitterness without adding sugar
- Crystal Light Energy (powder): 60mg caffeine per stick pack, flavored, sucralose + acesulfame potassium
- Stur Energy (liquid): 85mg caffeine per squeeze, flavored, stevia
- True Lemon Energy (powder): 80mg caffeine per stick pack, flavored, stevia
Non-caffeinated flagship lines include regular MiO, regular Crystal Light, regular Stur, and True Lemon's standard flavor packets. If the label doesn't say "Energy," assume it's caffeine-free, then verify on the Supplement Facts panel.
Table of contents
- How I picked these products
- Side-by-side comparison table
- MiO Energy, the household name
- Drizz Energy Drops, the unflavored option
- Stur Energy, the stevia-sweetened pick
- Powder options: Crystal Light Energy and True Lemon Energy
- How to choose, honestly
How I picked these products
I had three rules. First, the product has to be sold in the United States right now with a readable Supplement Facts panel. Second, caffeine has to be listed as an ingredient on the current label, with a per-serving amount. Third, it has to be positioned as a water enhancer or drink mix, not an energy shot or canned drink.
That meant I left out plenty of things that look adjacent. 5-Hour Energy is a shot, not an enhancer. Celsius comes in a can. Zipfizz is a powder tube with vitamins and B12 that lands more in the sports-drink category than the water-enhancer category. Those are all fine products, but they're a different shelf.
Prices checked October 2026. Labels pulled from each brand's current website product pages and from physical bottles I had on hand.
Side-by-side comparison table
| Product | Format | Caffeine per serving | Servings | Added flavor | Sugar | Sweetener |
|---|---|---|---|---|---|---|
| MiO Energy | Liquid, squeeze bottle | 60mg | 18 | Yes (fruit flavors) | 0g | Sucralose, acesulfame potassium |
| Drizz Energy Drops | Liquid, squeeze bottle | 65mg (green tea) | 15 | No | 0g | Sucralose |
| Stur Energy | Liquid, squeeze bottle | 85mg | 20 | Yes | 0g | Stevia |
| Crystal Light Energy | Powder, stick pack | 60mg | 10 per box | Yes | 0g | Sucralose, acesulfame potassium |
| True Lemon Energy | Powder, stick pack | 80mg | 10 per box | Yes | 0g | Stevia |
Verify the specific SKU before buying. Flavors within a line sometimes vary in caffeine, and labels get reformulated. The front of the bottle is marketing. The Supplement Facts panel is the truth.
MiO Energy, the household name
MiO is the brand most people picture when they hear "water enhancer." Kraft Heinz owns it, it's been on shelves since 2011, and MiO Energy launched not long after as the caffeinated line. Per the current MiO Energy label, one squeeze is 60mg of caffeine plus B vitamins (niacin, B6, B12), sweetened with sucralose and acesulfame potassium.
The flavor list is where MiO Energy lives or dies for you. It's all fruit-forward: Black Cherry, Green Thunder, Tropical Fusion, and so on. If you like those flavors in a water bottle, MiO Energy is the easy pick. If you don't want flavor at all, you're on the wrong aisle.
Caffeine source isn't specified beyond "caffeine" on the ingredient list, which the FDA regulates as a food additive when added to foods and beverages. For context, 60mg is a bit less than a typical cup of brewed coffee (around 95mg per the USDA FoodData Central) and a bit less than a Red Bull (80mg).
Drizz Energy Drops, the unflavored option
This is my product, so take this section with that in mind. I built Drizz Energy Drops because I wanted caffeine I could add to anything, water, sparkling water, soda, without turning my drink into fruit punch. The current label is 65mg of green tea caffeine per squeeze, with L-theanine and taurine, 15 servings per 60ml bottle.
"Green tea caffeine" is the differentiator worth naming. Most water enhancers list caffeine without specifying the source, which usually means synthetic or coffee-bean-derived caffeine. Green tea caffeine behaves the same chemically but comes from Camellia sinensis extract. For me, it's a sourcing choice, nothing more.
There's no added flavor. In plain water, you may notice a slight sweetness; a touch of sucralose balances caffeine's natural bitterness without adding sugar. In anything with its own flavor, sparkling water with lime, a soda, a sports drink, it's virtually undetectable. I use it in LaCroix most mornings and in plain water during long rides.
If you're comparing options and want more context on the liquid-caffeine category specifically, I wrote a deeper breakdown over at best liquid caffeine drops.
Stur Energy, the stevia-sweetened pick
Stur has been around since 2012, and the Stur Energy line is the caffeinated version. The current label shows 85mg of caffeine per squeeze, which is on the higher end of this category, closer to a Red Bull than a cup of brewed coffee. The sweetener is stevia leaf extract, which is the main reason people choose Stur over MiO or Crystal Light: no sucralose, no acesulfame potassium.
Flavors are fruit-based (Blue Raspberry Pomegranate, Peach Mango, etc.), and the ingredient list leans into "no artificial" positioning. If stevia agrees with your palate, Stur Energy is a solid pick. Some people taste stevia's slight licorice note; others don't. That's the one variable to test for yourself.
Research on L-theanine, which Drizz includes but Stur doesn't, suggests it may support focused attention when paired with caffeine. A 2008 study published in Biological Psychology found the combination improved accuracy on attention-switching tasks compared to caffeine alone. That's not a reason to pick one product over another on its own, but it's worth knowing what's in the bottle.
Powder options: Crystal Light Energy and True Lemon Energy
Powders are the other half of this category. Crystal Light Energy (also Kraft Heinz) delivers 60mg of caffeine per stick pack, sweetened with sucralose and acesulfame potassium, in flavors like Wild Strawberry and Citrus. True Lemon Energy, from a smaller brand called True Citrus, delivers 80mg per stick pack and uses stevia with real citrus powder for flavor.
Powders have one real advantage: they travel flat. A stick pack is lighter than a bottle and survives being crammed in a jacket pocket or a race belt. The downside is you commit to one serving per pack. With a liquid enhancer you can do half a squeeze. With a stick pack, you're pouring the whole thing or awkwardly saving half.
Caffeine content aside, powders also tend to have more total ingredients: anti-caking agents, flavor carriers, and sometimes B vitamins or electrolytes. If you're trying to keep your ingredient list short, liquids usually win. If you want a single-use dose you can throw in a bag, powders are built for that.
How to choose, honestly
Here's how I'd think about it if I were standing in that aisle:
If you want flavor and a familiar brand, MiO Energy. It's cheap, it's everywhere, and 60mg is a predictable dose.
If you want no flavor, Drizz Energy Drops. That's the lane we built the product for, and it's not well-served elsewhere.
If you avoid sucralose, Stur Energy or True Lemon Energy. Both use stevia.
If you need a travel-friendly single dose, Crystal Light Energy or True Lemon Energy stick packs. They're lighter than any bottle.
If you want caffeine plus L-theanine in the same serving, Drizz is the only option on this list that includes it. That's a formulation choice, not a performance promise.
Whatever you pick, read the Supplement Facts panel on the bottle you actually buy. Reformulations happen. Flavors within a line sometimes have different caffeine content. The front of the package is marketing. The back is the truth.
If you're new to the whole category of energy drops and want to understand how they stack up against shots, cans, and coffee more broadly, that's a longer conversation. But for the narrow question of "which water enhancer has caffeine in it," the five products above are the answer as of October 2026.
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. Consult your doctor before starting any new supplement, especially if you are pregnant, nursing, or have a medical condition.