Radiesse works well as filler plus it stimulates your own collagen production, and is perfectly suitable for evening out the asymmetrical areas of the cheeks and jawlines.
Radiesse does not require allergy testing prior to injections however there are warnings on the product for patients with multiple allergies.
The warnings are as follows:
Radiesse should not be used in patients who have severe allergies marked by a history of anaphylaxis or history or presence of multiple severe allergies. Radiesse should not be used in patients with known hypersensitivity to any of its components. Because it’s mixed with a local anesthetic prior to injection, Radiesse should not be used in patients with a history of allergies to lidocaine. Radiesse® should be used in women who are pregnant or breastfeeding.
As far as age is concerned, 30 is not too early if you are trying to correct a particular feature with the procedure. Ultimately the decision is yours whether to have the injections or not, provided there are no contraindications to Radiesse in the first place.