ISTI offers individual classes and complete sessions that continually meet the challenging and changing social trends through specially designed programs developed by Dr. Tammy Nelson, an internationally recognized expert, author, lecturer, and thought leader.  Attending these courses allows practitioners from all backgrounds to discover their own best selves while under the guidance of some of the most respected names in the industry.

You can blend online coursework with in-person sessions. Your pathway may start with coursework that transfers into our program as you pursue your certification. Your program grows as you need it, so if you begin on one certification you can add the other one at any time. 

Apply here or contact our Registrar with questions.

Study Track 1
Certified Sex & Couples
Therapist (CSCT)
Study Track 2
Certified Sex Therapist
(CST) by AASECT* **
​Study Track 3
Dual Certification
Sex Therapy50 hours44 hours44 hours
Sex Education90 hours90 hours
Couples Therapy30 hours30 hours
Integrative Therapy15 hours16 hours16 hours
SAR14 hours14 hours14 hours
109 hours164 hours209 hours

Supervision required:

50 hours10 hours
Supervision50 hours50 hours

Program Cost:

Original Cost$4360$6560$8360
2023 Discount$3690$5490$7090

We accept up to 30 hours of transfer credits including but not limited to these couples programs. We offer payment programs, internships, and scholarships for individual events.

* Includes 16 hours of Couples Counseling Training. This requirement can be completed in the program or in an approved program for transfer.

** This program meets the educational requirements for CE’s for AASECT certification. Completion of this program does not ensure or guarantee AASECT certification. For further information, please contact or your local certifying organization for detailed information.

** Integrative Sex Therapy Institute is approved by the American Psychological Association to sponsor continuing education for psychologists. Integrative Sex Therapy Institute maintains responsibility for this program and its content.