Creatine: The Complete
Supplement Guide
The most research-backed performance supplement in existence. Here's everything you need to know — no bro-science included.
Creatine monohydrate has over 500 peer-reviewed studies behind it. It is one of the cheapest, safest, and most effective supplements you can take. Yet most gym-goers either misuse it, cycle it unnecessarily, or avoid it entirely based on myths. This guide sets the record straight.
What creatine actually does
Creatine is stored in muscle cells as phosphocreatine. During short bursts of high-intensity effort — a heavy squat, a sprint, a final rep — your body rapidly regenerates ATP (energy currency) using phosphocreatine as a fuel source. More creatine in the muscle = more ATP available = more reps before fatigue kicks in.
Supplementing creatine saturates your muscle stores beyond what diet alone provides, increasing your capacity for explosive, high-intensity work.
Strength gain
+5–15%
Typical improvement in 1RM over 4–8 weeks
Lean mass gain
+1–2 kg
Initial water retention, then real muscle
Rep performance
+1–3 reps
Extra reps at 70–80% 1RM in compound lifts
Loading vs. no loading
Both approaches work. Loading gets you to full saturation faster; skipping the load phase just takes a bit longer.
Loading protocol
20g/day (4×5g) for 5–7 days, then 3–5g/day
Full saturation in ~7 days · Slightly more GI discomfort during loading week
No-load protocol
3–5g/day from day one
Full saturation in ~28 days · No side effects, no difference in long-term results
Recommendation: Skip the loading phase. Take 5g daily, every day, including rest days. Muscle creatine stores stay saturated as long as you keep taking it.
Timing: does it matter?
Timing is largely irrelevant. Some evidence suggests post-workout creatine may have a slight edge — insulin sensitivity is higher after training, which helps creatine transport into muscles. But the effect is small. Consistency matters far more than timing. Pick a time and take it daily.
Which form of creatine should you buy?
Creatine monohydrate
Best choiceCheapest, most studied, equally effective as every other form. Buy micronized for better mixability.
Creatine HCL
Fine, but overpricedBetter solubility, smaller dose needed, but costs 3–5x more with no proven performance advantage.
Buffered creatine (Kre-Alkalyn)
Skip itMarketing claims it avoids conversion to creatinine. Studies show no difference vs monohydrate.
Creatine ethyl ester
AvoidConverts to creatinine faster than monohydrate. Actually less effective in studies.
Myths busted
closeMyth: "Creatine damages your kidneys"
check_circleFalse in healthy individuals. Creatine raises serum creatinine (a kidney marker) but this is a direct result of creatine metabolism, not kidney damage. Hundreds of studies confirm long-term safety.
closeMyth: "You need to cycle creatine"
check_circleNo evidence for this. There is no benefit to cycling. Taking it daily indefinitely maintains muscle saturation with no downside.
closeMyth: "Creatine causes hair loss"
check_circleOne study in rugby players found elevated DHT (linked to hair loss) after loading. No follow-up study has replicated this. The evidence is extremely weak.
closeMyth: "Creatine is a steroid"
check_circleIt is an amino acid derivative made naturally in your liver. Nothing like a steroid pharmacologically or legally.
closeMyth: "More is better"
check_circleOnce muscle stores are saturated (~5g/day), excess creatine is excreted. Taking 10–20g/day in maintenance is just expensive urine.
Who benefits most
Creatine benefits anyone doing resistance training, sprinting, or high-intensity intervals. It is particularly effective for:
- check_circleStrength and power athletes (weightlifting, powerlifting, sprinting)
- check_circleVegetarians and vegans — dietary creatine comes only from meat/fish, so baseline stores are lower and response to supplementation is stronger
- check_circleNatural lifters trying to maximize strength without performance-enhancing drugs
- check_circleOlder adults — evidence shows creatine preserves muscle mass and cognitive function with aging
The bottom line
5g of creatine monohydrate, daily, consistently. That is all. No loading required. No cycling required. No exotic forms needed. One of the cheapest, safest, most effective decisions you can make in your supplement stack.
Calculate your macro targets
Creatine handles the energy side. Make sure your protein and calorie targets support your muscle gain goal.
Open Macro Calculator arrow_forwardTrack every macro automatically.
SlayCal logs your nutrition in seconds — scan, tap, done. Spend your energy lifting, not logging.