Endoluten + Crystagen

Current record

I started both products on October 5, 2026, after baseline bloodwork. The final course day is planned for October 25, making 21 days in total. Follow-up bloodwork is planned for October 29, four calendar days after finishing. The experiment is active; no outcome has been assessed yet.

Why this pairing

International travel changes my sleep, meal timing, training, and exposure to other people all at once. Endoluten is the pineal-focused bioregulator in this pairing: I am looking for less fragmented sleep, easier time-zone adaptation, and faster normalization of sleep timing. Crystagen adds the immune question: what happens to my immune markers, and do I develop respiratory or other infectious symptoms during the trip?

My protocol

Two capsules of each product daily, or 42 of each across the planned course. I am keeping the amount fixed throughout, then stopping after October 25.

Before, during, and after travel

The plan covers seven days before departure, the approximately week-long trip, and seven days after returning. Starting before departure gives me several ordinary days to observe tolerability. During travel I will follow breakfast and dinner on the local clock. The final week follows the return to my usual routine.

Bloodwork: the immune side

These five tests were collected before the first capsules. The plan is to repeat the panel through Mito Health on October 29 and compare the results with that baseline.

I will read the direction and size of changes together, with symptoms and collection conditions beside them. A higher immune-cell count or antibody level is not automatically a better result. The October 29 comparison is a post-course measurement, four days after the planned final day.

WHOOP: sleep and recovery

I already have a WHOOP baseline. I will compare sleep duration, efficiency, consistency, onset and wake timing, disturbances, and estimated sleep stages across the pre-trip, travel, and return-home periods. Resting heart rate, HRV, respiratory rate, and recovery add the broader physiological picture.

The useful signal is a sustained pattern across several nights: less fragmented sleep, easier adjustment, and fewer days to get back to my usual rhythm. One unusually good sleep score will not decide the result.

Daily observations

I will follow subjective jet-lag severity, daytime energy, respiratory or other infectious symptoms, tolerability, and how quickly I feel back to baseline after returning. Changes in training, meal timing, and the surrounding routine belong beside those observations. Both products started together, so the overall result belongs to this combined experiment.

Measurements outside this run

I would like a full lymphocyte-subset panel covering CD3, CD4, CD8, the CD4:CD8 ratio, CD19, and CD16/CD56. The NK panel supplies one part of that picture. IgG, naive T cells, recent thymic emigrants, and TRECs are also outside the current panel.

For the circadian side, dim-light melatonin onset or overnight urinary 6-sulfatoxymelatonin would add a direct melatonin-related measurement. Neither is included. This run therefore follows blood immune markers and sleep/recovery observations without directly measuring thymic output or my melatonin rhythm.

The pineal and circadian hypothesis

The relevant human research includes a 2004 study of Epithalamin, a pineal peptide preparation, in older adults. Nighttime plasma melatonin increased in participants with initially reduced pineal activity; those with normal baseline function showed a tendency toward lower levels. That makes regulation of the melatonin rhythm an interesting hypothesis. The study used Epithalamin, not my oral Endoluten product, and did not test jet lag. Korkushko et al., 2004.

The immune hypothesis

A 2014 experimental study of peptides in the aging spleen reported B-cell activation with Crystagen, without the cell-renewal effect seen with some of the other peptides studied. This is part of the biological rationale for following immune measurements. It does not establish that Crystagen prevents infections during travel. Chervyakova et al., 2014.

My practical question is what happens when I apply this combination to a specific stressor: international travel. The research explains why I chose the products; the personal record will show whether the experience and measurements produce a useful result.

Sources

• Korkushko et al., Bulletin of Experimental Biology and Medicine, 2004: Epithalamin and the circadian pattern of plasma melatonin in older adults.
• Chervyakova et al., Advances in Gerontology, 2014: experimental immune effects of short peptides, including Crystagen, in the aging spleen.