Course or single session? When the package is genuinely better value

Almost every treatment on our list is offered as a single session or a discounted course. The discount is real — usually 15 to 25 percent. But a discount on something you did not need is not a saving, and the genuinely useful question is different.

It is this: does this treatment produce a result from one session, or does one session produce a third of a result?

Treatments where a course is how it works

For these, a single session is not a smaller version of the treatment. It is an incomplete one, and judging it on that basis will disappoint you.

The common thread: they all work by prompting a biological process that needs repeated stimulus. One session starts something that is not finished.

Treatments that stand alone

These produce a genuine, complete result from one appointment:

• 3D HydrO2 facials. One facial gives you a week of better skin. A course is maintenance, not completion.
• Vitamin injections. Discrete interventions.
• Green Peel. One treatment produces one full renewal cycle. A course deepens the cumulative effect but the first one has genuinely worked.
• Anti-wrinkle treatment. One treatment lasts three to four months. The "course" is simply a year of maintenance bought in advance.

The honest maths on anti-wrinkle courses

Three areas: £250 single, £640 for three. That is about £213 a session — a saving of £110 across the year if you were going to have all three anyway.

• Had it before and know you like it? The course is straightforwardly good value.
• First time ever? Have a single session. Find out how you respond, how long it lasts on you, and whether you want to continue. Then buy the course.

Buying a year of a treatment you have never had is buying a discount on an unknown.

The rule we would apply

1. Never buy a course of something you have not had before, unless the protocol requires a course to work at all.
2. For protocol-driven treatments, buy the course. A single session of polynucleotides or Profhilo is money spent on an unfinished treatment.
3. For maintenance treatments, buy singles until you know your rhythm. Some people need a facial monthly, some six-weekly.
4. Do not buy a course to lock in a promotional price if you are unsure about the treatment.

Questions worth asking

• "Will I see anything from one session?" — a straight answer distinguishes protocol treatments from maintenance ones.
• "What happens if I stop after one?"
• "Does the course expire?" — a course with a short expiry is a scheduling constraint you should know about.
• "Can I convert this if we change the plan?"

For the record: our course sessions do not expire on a fixed date. If a plan changes at a review, the remaining value moves with it.

The genuinely bad reason to buy a course

Because it is offered at the end of a treatment, while you are pleased with how the appointment went and are being asked to decide on the spot.

That is a decision made at the least rational moment available. Anything worth buying is still worth buying a week later, and a clinic that will not hold a price for a week has told you what the price meant.

If you are weighing more than one treatment, the sequencing guide is worth reading before committing to any of it.