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Step one: set the timeline before the advice
Start by dividing aftercare into stages the client can picture: the first hours while the paste is still on, the day when it is removed, and the following days as the stain settles. Give each stage a plain label and one main instruction. For example, a bridal client with a hand design might see Hours 0 to 6 leave paste undisturbed, Removal day gently lift dried paste, and Days 2 to 7 protect the stain. A timeline lets the artist say less in person, because the card carries the schedule and the client can check it later.
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Step two: choose the few actions that matter
List only the actions that affect how the design looks and feels: how long to leave the paste on, how to remove it without scrubbing, what to avoid while it is fresh, and how to protect the skin afterward. Write each as a short verb phrase, such as keep the area dry or avoid picking at flakes. Resist adding every tip you have heard. A shorter list is easier to remember and easier for you to stand behind. If your studio has a preferred sealing or moisturizing habit, state it as your practice, not as a universal rule.
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Step three: add a check and a follow-up path
Close with a simple self-check and a way to reach you. A check might say that mild redness should be watched, and that anyone with itching, swelling or discomfort should stop and seek appropriate care. Keep the wording factual and avoid making medical promises. Then add a contact line, such as a message address or a booking page note, for questions about fading or touch-ups. Worked example: a one-page card with a three-stage timeline, five short actions and one contact line can be printed for events and also reused as the aftercare page on a website.