Begin by assessing why the lift was under-processed. Check the product expiry date and confirm the products have been stored correctly. Review the lash assessment, including the hair’s diameter, density, porosity and resistance, and consider whether the processing time was appropriate for the individual client.
If the lashes are healthy and have not reached the desired level of lift, a corrective lifting service may be performed using reduced processing times in accordance with the Brik & Pearl corrective treatment guidelines.
Before performing any corrective service, ensure the lashes are in suitable condition to undergo another chemical treatment. If the lashes show signs of over-processing or compromised integrity, prioritise conditioning and reparative treatments before considering another lifting service.