Kre-Alkalyn (Buffered Creatine) vs Selenium (Selenomethionine)
Creatine vs Mineral · evidence-backed comparison
- • Selenium (Selenomethionine) has the stronger evidence base (moderate (some rcts)).
- • Kre-Alkalyn (Buffered Creatine) has the broader effect profile across the 9 effect categories.
- • Selenium (Selenomethionine) is cheaper per serving ($0.10 vs $0.55).
- • Kre-Alkalyn (Buffered Creatine) has a slightly cleaner safety profile.
- • Selenium (Selenomethionine) has higher bioavailability (better absorption).
Side-by-side traits
| Trait | Kre-Alkalyn (Buffered Creatine) | Selenium (Selenomethionine) |
|---|---|---|
Category | Creatine | Mineral |
Active compound | pH-buffered creatine monohydrate | Selenomethionine |
Form available | Powder, Capsule | Capsule, Tablet |
Source | synthetic | synthetic |
Typical dose | 1.5–3 g daily | 100–200 mcg daily |
Dose range | 1.5–3 g | 100–200 mcg |
Loading protocol | — | — |
Best taken with | water | with food |
Best time of day | any | any |
Bioavailability How efficiently the body absorbs and utilizes the compound. | High (4/5) | Very High (5/5) |
Onset time | Cumulative: 14–28 days | Cumulative: 4–12 weeks |
Half-life | — | ~252 days (long body store) |
Evidence level Quality and quantity of human research. | Limited (small studies) | Moderate (some RCTs) |
Overall effect Subjective effect magnitude. | High (4/5) | Low (2/5) |
Muscle / strength | High (4/5) | Very Low (1/5) |
Physical energy | Moderate (3/5) | Low (2/5) |
Focus / cognition | Low (2/5) | Very Low (1/5) |
Mood / stress | Very Low (1/5) | Low (2/5) |
Sleep quality | Very Low (1/5) | Very Low (1/5) |
Immunity | Very Low (1/5) | Moderate (3/5) |
Recovery Post-exercise recovery support. | Moderate (3/5) | Low (2/5) |
Longevity / healthspan | Low (2/5) | Moderate (3/5) |
Safety rating 5 = exceptionally well-tolerated; 1 = significant risk profile. | Very High (5/5) | Moderate (3/5) |
Price per serving Approximate USD per typical daily dose. | $0.55 | $0.10 |
Vegan friendly | Yes | Yes |
Gluten free | Yes | Yes |
3rd-party tested | Yes | Yes |
About Kre-Alkalyn (Buffered Creatine)
pH-buffered creatine claiming better stability in stomach acid. Independent studies show no advantage over plain monohydrate.
About Selenium (Selenomethionine)
Cofactor for glutathione peroxidase and thyroid hormone activation. Two Brazil nuts per day already meet requirements; toxicity above 400 mcg.
Vetted brands, third-party testing, ships worldwide.
Vetted brands, third-party testing, ships worldwide.
Kre-Alkalyn (Buffered Creatine) safety
Common side effects:
- • Generally none
Avoid if:
- • Severe kidney disease
Drug interactions:
- • Nephrotoxic drugs
Selenium (Selenomethionine) safety
Common side effects:
- • Selenosis (>400 mcg/day): hair loss, garlic breath, brittle nails
Avoid if:
- • Already eating Brazil nuts daily
Drug interactions:
- • Anticoagulants
Common uses
- • Muscle gain
- • Strength
Stacks well with: Whey Protein Isolate
Common uses
- • Thyroid support
- • Hashimoto's
- • Antioxidant
Stacks well with: Iodine (Potassium Iodide)
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Medical disclaimer
SupplementDuel is for educational purposes only and is not medical advice. Consult a physician before starting, stopping, or combining supplements — especially if you are pregnant, breastfeeding, take prescription medication, or have a chronic condition.