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Posted under SkinMedica q&a

Should I use both TNS Essential Serum and TNS HA5? I have mature skin. Can I use Tretinoin with both these products?

misscautious
What is the safest site to buy TNS products?

Answers (3)

From board-certified doctors and trusted medical professionals
Phillip Chang, MD profile photo
Dr. Phillip Chang, MD
Board Certified Plastic Surgeon
4.7 | 16 Reviews
Answer
Deborah M. Longwill, DO profile photo
Dr. Deborah M. Longwill, DO
Board Certified Dermatologist
4.8 | 22 Reviews
Answer
Dr. Carrie Houssock, MD
Board Certified Plastic Surgeon
Answer