exhibit 10. 23 200 reservoir street, suite 303 needham, ma 02494 www. meltpharma. com 200 reservoir street, suite 303 needham, ma 02494 www. meltpharma. com 200 reservoir street, suite 303 needham, ma 02494 www. meltpharma. com 200 reservoir street, suite 303 needham, ma 02494 www. meltpharma. com may 28, 2021 mark hazard [ * * * ] [ * * * ] re : separation of employment dear mr. hazard, this letter summarizes the terms of your separation of employment with melt pharmaceuticals. 1. date of termination. your employment with melt pharmaceuticals has changed due to termination of position. 2. salary / accrued paid time off / expense reimbursement. you will be paid out all outstanding wages through may 28, 2021. as of the date of your termination / separation, you had 240 hours of paid time off ( pto ) accrued. 3. health / retirement benefits. you will receive information explaining your health insurance continuation coverage rights via mail from adp. your health benefits will be active with melt pharmaceuticals until may 31, 2021. 4. references. we will inform any future prospective employer that our policy is to only confirm your most recently held position, dates of employment and rate of pay. 5. unemployment benefits. the state of massachusetts labor & workforce development will determine your eligibility for unemployment benefits. 6. company property. you are obligated to return all company property in your possession. 7. personal property. any personal property will be shipped to you. 8. adp information. 1. date of termination. your employment with melt pharmaceuticals has changed due to termination of position. 1. date of termination. your employment with melt pharmaceuticals has changed due to termination of position. 2. salary / accrued paid time off / expense reimbursement. you will be paid out all outstanding wages through may 28, 2021. as of the date of your termination / separation, you had 240 hours of paid time off ( pto ) accrued. 2. salary / accrued paid time off / expense reimbursement. you will be paid out all outstanding wages through may 28, 2021. as of the date of your termination / separation, you had 240 hours of paid time off ( pto ) accrued. 3. health / retirement benefits. you will receive information explaining your health insurance continuation coverage rights via