Why it is essential
Practice skin does not bleed, swell, flinch, or heal. Only a real lip teaches you to read lymph vs blood, adjust to a moving target, judge when 'enough' is enough, and — weeks later — see how your wet-colour choices actually healed. Reviewing your own healed models is the single most valuable training activity.
Doing it responsibly
A training model is a client: full medical screening and contraindication check, patch test where indicated, written informed consent (including that a supervised learner is working), realistic-expectation briefing, sterile setup, and the work done under a qualified supervisor who can take over. Insurance must cover student work — check the policy.
Follow-through
Book and perform the touch-up, collect healed photos, and debrief each case with your supervisor. A model day with no healed follow-up has taught you only half of each lesson.
