Yes — it is actually a very good idea.
Subtle guidance is important, especially for first-time clients.
Because your QR codes are behind the card, the message in front should gently tell people to turn the card over.
For your design and tone (premium, calm, not salesy), use this instead of “scan”:
Retournez la carte pour découvrir nos tarifs
Then, just under it (smaller line):
Massages · Beauté · Localisation
This is better than “Scannez…” on the front because:
- it clearly tells them there is something behind,
- it avoids confusion,
- it keeps the luxury feel of L’ESSENCE,
- it prepares them naturally for the QR codes.
So the final middle text should be:
Retournez la carte pour découvrir