Product Description
Creatine has more peer-reviewed research behind it than almost any other supplement on the market. Decades of studies, thousands of participants, consistent results: supplementing with creatine monohydrate increases your muscles' ability to produce energy during high-intensity efforts, supports strength and power output, and helps you recover faster between hard intervals.
The International Society of Sports Nutrition identifies it as the single most effective supplement for increasing high-intensity exercise capacity. And yet, for years, most endurance athletes left it on the shelf — assuming it was a gym supplement, not a race supplement.
SiS Creatine Powder delivers 3g of pure creatine monohydrate per serving in a completely unflavored, Informed Sport-certified formula that mixes invisibly into anything — designed for the athlete who wants the performance benefit without the baggage of a flavored supplement.
Built for the Way Endurance Athletes Actually Train – The performance case for creatine in endurance sport isn't about getting bigger. It's about what happens in efforts. Creatine replenishes phosphocreatine — the energy system your muscles tap for short, intense bursts — which means harder efforts on climbs, faster sprint finishes, and more watts sustained during intervals. Those efforts compound across a training block.
Unflavored by Design – No sweeteners, no flavoring, no chalk taste. SiS Creatine Powder mixes clean into water, a protein shake, a recovery drink, or your morning coffee. The unflavored format is specifically useful for athletes already running a full supplement stack who don't want competing flavors colliding in their post-workout shake.
Informed Sport Certified – Every batch is independently tested for all compounds on the WADA Banned Substances List through the Informed Sport program. For competitive endurance athletes, that's the floor for any supplement going into the body.
Your muscles can only store so much creatine naturally — and the amount you get from diet alone isn't enough to top off those stores fully. That's the gap supplementation fills. A daily 3g serving steadily saturates your muscle creatine stores over time, supporting your phosphocreatine energy system so it's fully primed when you need to dig deep. The same mechanism also supports emerging research into cognitive function — creatine plays a role in brain energy metabolism, which matters when your head is as taxed as your legs in the final miles of a long race.
How to Use SiS Creatine Powder
Daily Dose: Add one level scoop (3g) to 200ml of water, juice, or your preferred shake and stir for approximately 10 seconds. Consume immediately.
Timing: Any time of day works. Creatine builds up in your muscles over time — consistency matters more than the specific window. Daily use on both training days and rest days is what drives muscle saturation.
Loading Option: Some athletes choose a short loading phase (higher daily intake for 5–7 days) to saturate muscle stores faster before a target event or training block. Note: this approach usually temporarily increases weight because of water retention.
Stop leaving one of sport's most-researched supplements on the table. This is clean, tested creatine monohydrate from a brand built for endurance — nothing added, nothing in the way.
- Gluten free
- Vegan
- Nut free
- Sport Tested: Informed Sport
Supplement Facts
133 Servings - Unflavored
Serving Size: 1 Scoop (3g)
Serving Per Container: 133
| Amount Per Serving | ||
|---|---|---|
| % Daily Value* | ||
| Creatine Monohydrate 3g | ** | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Daily Value (DV) not established
Always Happy Promise: Don't like a product? Tell us within 30 days of receipt and we'll make it right and make you happy. Here at The Feed, we want you to love your experience and the sports nutrition products you purchase. If, for any reason, you are not satisfied with your nutrition specific purchase, tell us.
We do not accept returns on food items that have been opened, but we will issue a store credit if you are unsatisfied. In the event of a return, you must first contact us before sending back a return shipment.
Consumable products over $40 receive a 50% store credit. This includes specialty nutrition products such as ketones or supplements/vitamins.
SiS Creatine Powder FAQ's
Everything you need to know about SiS Creatine Powder.
The performance case for creatine in endurance sport is about efforts — climbs, sprint finishes, hard intervals — not muscle size. Creatine replenishes your phosphocreatine stores, the energy system your muscles tap for short, intense bursts, which means more power when you need to push hard within a longer effort. The International Society of Sports Nutrition identifies it as the single most effective supplement for increasing high-intensity exercise capacity.
Creatine supplementation can cause a small, temporary increase in body weight — typically 1–2kg — due to water being drawn into muscle cells as creatine stores fill. This isn't fat or muscle mass and isn't permanent if you stop supplementing. For most endurance athletes the power-to-weight tradeoff is neutral or positive, but it's worth noting for athletes in weight-sensitive disciplines.
Loading isn't required — it's a shortcut. A loading phase (higher daily intake for 5–7 days) saturates your muscle stores faster, typically in about a week. Starting at 3g daily without loading achieves the same saturation level, just over 3–4 weeks instead. If you have a target event coming up soon, loading is worth considering; if you're building into a training block, daily maintenance works fine.
Creatine builds up in your muscles over time, so the specific daily window matters less than consistency. Taking it at the same time each day — whether that's morning, with a post-workout shake, or before bed — helps build the habit. Daily use on both training days and rest days is what drives full muscle saturation.
Pure creatine monohydrate powder is essentially tasteless and dissolves readily in liquid. At a 3g dose in 200ml or more of water or a shake, it won't alter the flavor of whatever you mix it with. This is specifically why the unflavored format is useful for athletes running a full supplement stack — it adds zero competing flavors.