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Supplement comparison tool
Pick up to 4 knowledge base entries and compare their dosage, price, evidence strength and ratings side by side — you can save or share a link to your selection.
Add to comparison (2/4)
| Category | Sen i regeneracja | Sen i regeneracja |
| Evidence strength | Moderate evidence | Strong evidence |
| Evidence Score | 3/5 | 5/5 |
| User rating | 4.4 (112) | 4.8 (82) |
| Typical dose | 1–5 minutes in water below 15°C, several times a week | — |
| Form | Cold shower, ice bath, or natural body of water (winter swimming) | — |
| Average price | — | — |
| Monthly cost | — | — |
| Time to effects | Subjective improvement in alertness and mood is felt almost immediately after exposure. | Disruptions to the GH pulse and cortisol rhythm appear after just a few nights of shortened or fragmented sleep; improvement after restoring regular, sufficient sleep is usually visible within several days to about two weeks. |
| Who it's for | People looking for a subjective boost in mood and alertness | People doing strength or endurance training, for whom GH-dependent tissue recovery has practical relevance |