Age file · one year to thirteen
What do you actually give a child at 3, at 8, and at 13?
The most common mistake on this shelf is not the ingredient. It is the dose and the hour — a bottle bought for the right reason and given at the wrong time of day, or given to a child who is a year below the floor on the label.
- The question
- What changes with age?
- The short version
- Age floor, format, dose, hour.
- Age floors here
- 1+, 3+, 4+ and 8+
- Bottles in store
- 7 formulas
- Reviewed
- 2026-09-17
The short answer
Four things change between a one-year-old and a fifteen-year-old, and only one of them is the dose. The age floor on the label changes, the format changes from dropper to gummy, the dose changes with body weight, and the hour of the day changes with what the ingredient is doing. A bottle that gets any of those four wrong is a bottle that ends up at the back of the shelf.
Why is a dropper the only format that works below three?
Because a two-year-old cannot be relied on to chew and swallow a gummy, and a gummy cut in half is not a dose. The youngest bottle in this store is therefore a liquid drop, with the child’s dose in the dropper and the adult dose, four times larger, on the same bottle. Above three, gummies become viable — which is why the same store carries the same ingredients in two shapes.
Why does the hour of the day matter as much as the dose?
Two examples from the bottles on this shelf. Saffron is given with breakfast rather than at bedtime because it works on the waking hours. Magnesium is given about an hour before bed because the thing it is in the house for happens at bedtime. Swap them and each bottle is in the wrong place in the day, which is how a perfectly reasonable supplement gets abandoned in week two.
| What changes | From | To |
|---|---|---|
| Age floor | 1 year (liquid only) | 8 years for a full teen-dose formula |
| Format | Dropper | Chewable gummy |
| Dose | By body weight, on the label | Fixed 2 gummies, or adult dose |
| Hour of day | With breakfast | An hour before bed, or before a meal |
| Sulforaphane rule | Cold drink only | Heat destroys the enzyme — no exceptions |
Does the same bottle work for a three-year-old and a thirteen-year-old?
Sometimes, and the label says when. The choline gummy is one bottle at two doses — a month to a bottle at the child dose, two weeks at the teen dose. The black walnut drop also carries an adult dose for the teenager in the house. Where a bottle is single-dose for one age only, it is filed under that age and not stretched.
When should a parent ask a doctor first?
When a prescription is already in the house. Each product page names its own version of that sentence — mood-related medicine for the saffron gummy, any prescription medicine for the magnesium drop, a diagnosed feeding issue for the appetite gummy. None of these bottles replaces anything prescribed, and none of them is meant to be added quietly.
What should the label tell you that the front of the bottle does not?
The age floor, the dose, and the form of the ingredient. A front label that says “kids” and a strawberry does not tell you whether a one-year-old can take it or whether the magnesium is citrate, glycinate or oxide. The back panel is where those three answers live, and it is worth reading before the price.
In this store
Seven bottles filed by the age floor on their own labels, from one year upward.
Open the age indexScope
This page describes ages, formats and label wording. It makes no claim about diagnosis, treatment or outcome.
Regulatory
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.
What this page is not
It is not a dosing table, and it is not a substitute for the label on the bottle or for a paediatrician who can see the whole shelf. Where this page would need a figure, it says so.