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Supplement comparison tool
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| Category | Suplementy | Suplementy |
| Evidence strength | Moderate evidence | Strong evidence |
| Evidence Score | 3/5 | 5/5 |
| User rating | 4.3 (289) | 4.9 (1042) |
| Typical dose | 5–15 g of hydrolyzed collagen per day | 1000–4000 IU/day in healthy adults (target dose depends on baseline 25(OH)D level) |
| Form | Collagen peptide powder (type I and III) | Cholecalciferol (D3), preferably taken with fat or vitamin K2 |
| Average price | 60–120 zł za 300 g proszku peptydów kolagenowych (ok. 20–30 dawek) | 15–35 zł za opakowanie kropli/kapsułek na 2–3 miesiące |
| Monthly cost | ok. 60–120 zł/miesiąc | ok. 8–15 zł/miesiąc |
| Time to effects | Skin effects (elasticity, hydration) are usually visible after 8–12 weeks; joint support is reported in studies after a similar period of regular use. | 25(OH)D blood levels rise noticeably after 6–8 weeks of regular supplementation; subjective effects (energy, immunity) are sometimes reported earlier, but are harder to measure objectively. |
| Who it's for | People interested in skin elasticity and hydration | Practically the entire population of Poland during autumn and winter |