Newest first.
Minvelle 90-day self-test, newest first: one piece of Minvelle nano-hydroxyapatite gum a day (5.7 mg nano-hydroxyapatite per 1.9 g piece), logged by Max, founder of Minvelle. The structured 90 started 27 July 2026; the verdict entry is due around 25 October 2026. One person, not a study.
2026-10-11 · week eleven of the structured 90
One piece of Minvelle nano-hydroxyapatite gum a day, 5.7 mg per 1.9 g piece. Self-test by Max, founder of Minvelle. One person, not a study.
Written Monday 12 October, one day late: the three checks were done on Monday morning, not on Sunday, and the log says so. Same order as every week.
Cold water: nothing. Eighth zero in a row. The full line since 2026-07-27 now reads mild twinge, less, quieter, quieter, zero, zero, zero, zero, zero, zero, zero, zero. The zero has been a trend by this log's rule since 2026-09-06. There is nothing to add, and that is the point: one person, one piece a day, and a check that keeps coming back empty.
The look: slightly whiter. Same mirror, same daylight, compared against 2026-10-04, which also read slightly whiter. That makes seven whiter readings, 2026-08-17, 2026-08-23, 2026-09-13, 2026-09-20, 2026-09-27, 2026-10-04 and 2026-10-11, and the last five sit on consecutive Sundays. The trend was called on 2026-09-13 with its gap named: whiter by my eye, nothing measured, and a mirror is still not a shade guide. Five in a row is the longest run in this log. It is still my eye.
Anything odd: nothing noted. The smoother feeling stays at three reports, 2026-08-23, 2026-09-06 and 2026-09-27. Absent again, or unnoticed; the log cannot tell those apart, so it writes "nothing noted" and moves on.
Adherence: 7 of 7 days. Every piece chewed, Monday to Sunday. The second full week in this log; the first was logged 2026-09-13. Six of seven stays at six weeks. Day 77 of 90; two Sundays left before the verdict on 25 October.
2026-10-04 · week ten of the structured 90
One piece of Minvelle nano-hydroxyapatite gum a day, 5.7 mg per 1.9 g piece. Self-test by Max, founder of Minvelle. One person, not a study.
Written Sunday 4 October, on time. Three checks, same order as every week.
Cold water: nothing. Seventh zero in a row. The full line since 2026-07-27 now reads mild twinge, less, quieter, quieter, zero, zero, zero, zero, zero, zero, zero. The zero has been a trend by this log's rule since 2026-09-06. Seven weeks of nothing is the least interesting sentence on this page, and it is also the one I would want to read if I were deciding whether to buy.
The look: slightly whiter. Same mirror, same daylight, compared against 2026-09-27, which also read slightly whiter. That makes six whiter readings, 2026-08-17, 2026-08-23, 2026-09-13, 2026-09-20, 2026-09-27 and 2026-10-04, and the last four sit on consecutive Sundays. The trend was called on 2026-09-13 with its gap named: whiter by my eye, nothing measured, and a mirror is still not a shade guide. Four Sundays in a row is the longest run in this log. It is still my eye.
Anything odd: nothing noted. The smoother feeling stays at three reports, 2026-08-23, 2026-09-06 and 2026-09-27. Absent this week, or unnoticed; the log cannot tell those apart, so it writes "nothing noted" and moves on.
Adherence: 6 of 7 days. One piece missed, again. Six of seven now stands at six weeks, 2026-08-17, 2026-08-23, 2026-09-06, 2026-09-20, 2026-09-27 and 2026-10-04. The only full week in this log is still the one logged 2026-09-13. Day 70 of 90; three Sundays left before the verdict on 25 October.
2026-09-27 · week nine of the structured 90
One piece of Minvelle nano-hydroxyapatite gum a day, 5.7 mg per 1.9 g piece. Self-test by Max, founder of Minvelle. One person, not a study.
Written Sunday 27 September, on time. Three checks, same order as every week.
Cold water: nothing. Sixth zero in a row. The full line since 2026-07-27 now reads mild twinge, less, quieter, quieter, zero, zero, zero, zero, zero, zero. By this log's rule the zero has been a trend since 2026-09-06, and a sixth zero adds a week to it, nothing more. One person, one piece a day, and a check that keeps coming back empty.
The look: slightly whiter. Same mirror, same daylight, compared against 2026-09-20, which also read slightly whiter. That makes five whiter readings, 2026-08-17, 2026-08-23, 2026-09-13, 2026-09-20 and 2026-09-27, and for the first time three of them sit on consecutive Sundays. The trend was called on 2026-09-13 with its gap named: whiter by my eye, nothing measured, and a mirror is still not a shade guide. Three Sundays in a row narrow the gap. They do not close it.
Anything odd: the smoother feeling is back. Third report, after 2026-08-23 and 2026-09-06. Three reports in nine weeks, never on consecutive Sundays, still a feeling and not a measurement. Logged at the same size as the two weeks it was absent.
Adherence: 6 of 7 days. One piece missed. The only full week in this log is still the one logged 2026-09-13. Six of seven now stands at five weeks, 2026-08-17, 2026-08-23, 2026-09-06, 2026-09-20 and 2026-09-27. The 90 keep counting from 27 July.
2026-09-20 · week eight of the structured 90
One piece of Minvelle nano-hydroxyapatite gum a day, 5.7 mg per 1.9 g piece. Self-test by Max, founder of Minvelle. One person, not a study.
Written Sunday 20 September, on time. Three checks, same order as every week.
Cold water: nothing. Fifth zero in a row. The full line since 2026-07-27 now reads mild twinge, less, quieter, quieter, zero, zero, zero, zero, zero. The zero has been a trend since 2026-09-06 by this log's rule. There is nothing new to say about it, and that is the entry: one person, one piece a day, and a check that keeps coming back empty.
The look: slightly whiter. Same mirror, same daylight, compared against 2026-09-13, which also read slightly whiter. The whiter readings now stand at four, 2026-08-17, 2026-08-23, 2026-09-13 and 2026-09-20, and for the first time two of them sit on consecutive Sundays. The trend was called on 2026-09-13 with its gap named; a fourth point does not close that gap, it just adds to the count. Whiter by my eye, nothing measured, and a mirror is still not a shade guide.
Anything odd: nothing noted. The smoother feeling logged on 2026-08-23 and 2026-09-06 was not reported this week either. It stays at two reports.
Adherence: 6 of 7 days. One piece missed. The week logged 2026-09-13 was the first full 7 of 7 in this log; this one drops back to the 6 of 7 that 2026-08-17, 2026-08-23 and 2026-09-06 also read. Logged at the same size as the full week. The 90 keep counting from 27 July.
2026-09-13 · week seven of the structured 90
One piece of Minvelle nano-hydroxyapatite gum a day, 5.7 mg per 1.9 g piece. Self-test by Max, founder of Minvelle. One person, not a study.
Written Sunday 13 September, on time. Three checks, same order as every week.
Cold water: no flinch. Fourth zero in a row. The full line since 2026-07-27 now reads mild twinge, less, quieter, quieter, zero, zero, zero, zero. The zero became a trend on 2026-09-06 by this log's rule; a fourth point does not make it more true, it makes it more boring, which is the point. Still one person and one piece a day.
The look: slightly whiter. Same mirror, same daylight, compared against the last look that actually happened, 2026-09-06, which read same. The whiter readings now stand at three, 2026-08-17, 2026-08-23 and 2026-09-13, with a skipped check on 2026-08-30 and a same on 2026-09-06 between the second and the third. Three points make a trend by the rule, and the rule gets applied, with the gap named: the three are not consecutive, and a mirror in daylight is not a shade guide. Whiter by my eye, nothing measured.
Anything odd: nothing noted. The smoother feeling logged on 2026-08-23 and 2026-09-06 was not reported this week. Absent or unnoticed, this log cannot tell the two apart, so it stays at two reports.
Adherence: 7 of 7 days. No piece missed. The weeks logged 2026-08-17, 2026-08-23 and 2026-09-06 read 6 of 7; this is the first full week in this log. The 90 keep counting from 27 July.
2026-09-06 · week six of the structured 90
One piece of Minvelle nano-hydroxyapatite gum a day, 5.7 mg per 1.9 g piece. Self-test by Max, founder of Minvelle. One person, not a study.
Written Monday 7 September, one day late. The three checks were done, the writing slipped a day. Named, per protocol.
Cold water: no flinch. Third zero in a row. The full line since 2026-07-27 now reads mild twinge, less, quieter, quieter, zero, zero, zero. Three points, so by this log's own rule the zero is now a trend and not a pair of quiet Sundays. It is still one person and one piece of gum a day. A trend in a self-test is a reason to keep logging, not a result.
The look: same. Same mirror, same daylight, compared against the last look that actually happened, 2026-08-23, which read slightly whiter. This time no difference I would sign. The whiter line stays at two points, 2026-08-17 and 2026-08-23, with the skipped 2026-08-30 look as a hole in it. Two whiter readings followed by a same reading is no trend, so no trend is called.
Anything odd: the smoother feeling is back. First logged 2026-08-23, teeth feeling smoother to the tongue, absent on 2026-08-30, here again this week. Two reports now, both feel only, nothing measured, nothing seen in the mirror. It moves from a single report to a repeat and stays out of any claim.
Adherence: 6 of 7 days. One missed piece, the same count as the weeks logged 2026-08-17 and 2026-08-23. The 90 keeps counting from 27 July regardless.
2026-08-30 · week five of the structured 90
One piece of Minvelle nano-hydroxyapatite gum a day, 5.7 mg per 1.9 g piece. Self-test by Max, founder of Minvelle. One person, not a study.
On time this Sunday.
Cold water: no flinch. Second zero in a row. The full line since 2026-07-27 now reads mild twinge, less, quieter, quieter, zero, zero. By this log's own rule that is still one point short of calling the zero a trend, so it stays a pair of points. One more quiet Sunday does it.
The look: skipped. No same-mirror, same-daylight look happened before this entry, and the protocol says a skipped check gets named instead of guessed, so: skipped. Annoying timing, because the last two entries both said slightly whiter and a third point would have made a trend. That question carries over to next Sunday, unanswered.
Anything odd: nothing. Last week's smoother-feeling teeth did not come back as a thing worth reporting, which is exactly why single reports stay single reports.
2026-08-23 · week four of the structured 90
One piece of Minvelle nano-hydroxyapatite gum a day, 5.7 mg per 1.9 g piece. Self-test by Max, founder of Minvelle. One person, not a study.
On time this Sunday, after the 2026-08-17 entry ran a day late. Adherence: six of seven days again, one day without a piece, the same dent as the week before.
Cold water: no flinch. Not quieter, none. The first zero since the 2026-07-27 baseline, at the end of a line that read mild twinge, less, quieter, quieter again. A first zero is a point, not a destination: it has to keep being zero to mean anything.
The look: slightly whiter again, the second entry in a row saying that. Two points in the same direction are still two points; three make a trend, and this check is not there yet.
Anything odd: for the first time this check has content: the teeth themselves feel different, smoother, as if some of the film on them had thinned out. That is a feeling reported by the person who sells the gum, so it is logged as exactly that and nothing more.
2026-08-17 · week three of the structured 90
One piece of Minvelle nano-hydroxyapatite gum a day, 5.7 mg per 1.9 g piece. Self-test by Max, founder of Minvelle. One person, not a study.
A day late: this entry was due Sunday 2026-08-16 and is logged Monday. The protocol says a skipped Sunday gets named, so: named. The checks cover the week to 2026-08-16. Adherence took its first dent too: six of seven days, one day without a piece, the first missed day since the start on 2026-07-27.
Cold water: quieter again, quieter than 2026-08-09, which was already quieter than 2026-08-02. This log's own rule says three points make a trend, and this is the third point in the same direction. So, said carefully: the flinch line is the first thing here that qualifies as a trend. Still one person, still not a study.
The look: slightly whiter than 2026-08-09, when it was unchanged. Logged at exactly that size. The full line so far reads barely brighter, unchanged, slightly whiter: not a straight line, so no trend claim on this one.
Anything odd: nothing. Third quiet week on this check, logged anyway.
2026-08-09 · week two of the structured 90
Fourteen days, fourteen pieces, still no skipped days.
Cold water: quieter than last Sunday, which was already quieter than day one. That is two weeks moving the same direction, which is the most interesting line in the log so far, and it still is not a trend. Three points make a trend. This is two.
The look: same as last week. No change gets logged at the same size as change, otherwise this page is an ad with dates on it.
Anything odd: nothing. Second boring week in a row. The protocol does not care.
2026-08-02 · week one of the structured 90
Seven days, seven pieces, no skipped days. First regular Sunday entry, same three checks.
Cold water: less flinch than last Sunday. Straight from the fridge there is still something there, but quieter than the day-one twinge. One week is too fast to call that a trend, so this stays a data point, not a result.
The look: brighter, and I mean barely. Same mirror, same daylight, and I can see it, but partly because I am looking for it. It is there, so it gets logged, at exactly that size.
Anything odd: nothing. A boring week, logged anyway, because that is the protocol.
2026-07-27 · day one of the structured 90
Vacation week, so the log finally gets the upgrade it needed. From today: one entry every Sunday, the same three checks every time. The rules are in the protocol card above. Here is the day-one baseline, so the next 89 days have something to be measured against.
Cold water: a really, really mild twinge. Not the March feeling, but not nothing either. Writing that down precisely because it would be tempting to round it to zero.
The look: brighter than my memory of spring. Memory is a bad camera, which is exactly why this line exists: to be checked against later, not trusted now.
Anything odd: two things, logged even though neither is an enamel result. My jawline looks more defined than a few months ago, that is what daily chewing does to the muscles and has nothing to do with the mineral. And breath is fresher, right after chewing and in general, which is saliva flow and xylitol doing their normal, well-documented job.
If the next 90 days show nothing beyond that, it lands here in the same font as everything else.
2026-07-12 · roughly three months in
First dated entry. Starting the discipline I should have had in April: one note a week, same three checks every time (sensitivity, look, anything odd). Current state: cold water is boring again. In March it wasn't.
Entries get added, never edited. If something goes wrong, it goes in the log too.