Calcarea phosphorica (calc phos) is a homeopathic remedy and tissue salt prepared from calcium phosphate, the mineral that gives bones and teeth their structure. In homeopathic practice it is traditionally associated with growth, bones and teeth, and with weariness or slow recovery after illness or rapid growth.
This page covers where Calcarea phosphorica comes from, its classic traditional uses, the symptom picture practitioners recognise, and the potencies it is usually found in.
The short version: Calc phos is the bone-and-growth tissue salt people reach for during growth spurts, teething and slow, weary recovery.
What is Calcarea phosphorica and where does it come from?
Calcarea phosphorica is made from calcium phosphate, prepared by chemical precipitation and then potentised. It is one of the twelve classic Schuessler tissue salts. Because calcium phosphate is the main mineral in bone and tooth, the remedy is traditionally connected with the tissues where the body is actively building and repairing structure.
What is Calcarea phosphorica traditionally used for?
In homeopathic and tissue-salt tradition, Calc phos is associated with growth and rebuilding. People reach for it when:
- Growing pains in children and teenagers, and slow, awkward growth spurts.
- Teething that is late or difficult.
- Bones slow to knit and a general concern for bone and tooth health.
- Weakness and weariness after illness, or feeling depleted and anaemic-looking.
- A discontented, fidgety restlessness — children who whine, adults who long to travel or be somewhere else.
Who typically reaches for Calcarea phosphorica?
The classic picture is the child or teenager who is shooting up, thin and often dissatisfied, with aching legs and a delicate digestion. Symptoms tend to be worse in cold, damp weather and with exertion. It also suits adults who feel wrung out and slow to bounce back after an illness, a demanding stretch, or too much growth in too little time.
What forms and potencies does Calcarea phosphorica come in?
Calcarea phosphorica is most often found as small tablets or pillules. As a tissue salt it is classically used in the low 6X strength, while as a homeopathic remedy it is commonly offered in 6C and 30C. Lower potencies tend to be chosen for everyday, physical, tissue-support use, and higher ones for deeper constitutional pictures. Whichever form you choose, follow the pack directions or the guidance of a qualified practitioner.
Your natural toolkit — and which to reach for
You will find Calcarea phosphorica offered as a single tissue-salt remedy. One option to explore is below.
Weleda Calcarea Carbonica 30c (125 Tablets) — reach for this if you want a simple single-remedy tablet in a common potency.
Featured products
Weleda Calcarea Carbonica 30c (125 Tablets)
A single homeopathic tablet remedy in a classic potency, easy to keep at home.
Explore the full United Remedies range — blending homeopathy from Heel, Guna and Sanum with Weleda’s plant-based topicals and Zooki’s liposomal supplements.
Common questions
What is Calcarea phosphorica best known for?
It is best known as the bone-and-growth tissue salt, traditionally associated with growing pains, teething and weary recovery after illness.
Is Calc phos a tissue salt?
Yes. It is one of the twelve classic Schuessler tissue salts, made from calcium phosphate and used in low potencies.
How is Calcarea phosphorica usually taken?
It is commonly used in low potencies such as 6C or 30C, or the 6X tissue-salt strength. Follow the pack directions or a qualified practitioner's guidance.
Note: This page is for general education and is not medical advice. Homeopathic remedies are used within a tradition of self-care and are not a substitute for professional diagnosis or treatment. If symptoms are severe, persistent or worsening, please speak to a qualified health professional.