Licensed Cosmetologist & Skincare Specialist
Licensed Cosmetologist, 12+ years experience
Jenna Kowalski is a licensed cosmetologist with over 12 years of experience in skincare and aesthetic treatments. She specializes in anti-aging protocols, ingredient science, and evidence-based skincare routines.
Cosmetology License
Paul Mitchell The School, 2012
Advanced Aesthetics Certification
International Dermal Institute, 2015
Jenna Kowalski brings over 12 years of hands-on experience in the skincare and beauty industry. As a licensed cosmetologist, she has worked with thousands of clients seeking solutions for aging skin, collagen loss, and overall skin health.
Her journey into collagen research began when she noticed the growing interest among her clients in supplement-based approaches to skincare. Determined to provide evidence-based recommendations, Jenna dedicated herself to studying the science behind collagen supplementation, attending industry conferences, and collaborating with dermatologists and nutritionists.
At Collagenium, Jenna combines her practical expertise with rigorous research to create content that's both scientifically accurate and accessible. She believes in empowering readers with the knowledge they need to make informed decisions about their health and beauty routines.
Find the best collagen supplements for men's specific health goals. Expert recommendations for joint support, muscle recovery, skin health, and overall wellness.
Jenna Kowalski 
Learn how bone broth provides natural collagen, how to make it at home, and how it compares to collagen supplements for health benefits.
Jenna Kowalski 
Discover why chicken feet are a collagen superfood. Learn how to prepare them, their nutritional benefits, and how they compare to collagen supplements.
Jenna Kowalski 
Understand what collagen before and after results actually look like. Set realistic expectations for skin, hair, nails, and joints with an honest timeline.
Jenna Kowalski 
Understand collagen cross-linking—how it affects skin aging, joint health, and overall collagen function. Learn what strengthens or damages collagen crosslinks.
Jenna Kowalski 
Explore the evidence behind collagen supplements for joint health. Learn which types work best, what research supports, and how to choose the right collagen for joint support.
Jenna Kowalski 
Can collagen supplements help with loose skin after weight loss or aging? Explore what research shows, set realistic expectations, and learn what actually works.
Jenna Kowalski 
Can collagen supplements improve hair growth and thickness? Explore what science says about collagen for hair health and set realistic expectations.
Jenna Kowalski 
Discover the realistic timeline for collagen supplement results. Learn when to expect improvements in skin, hair, nails, and joints based on research.
Jenna Kowalski 
Discover the best foods high in collagen and foods that boost collagen production naturally. Learn how diet supports collagen health for skin, joints, and overall wellness.
Jenna Kowalski Is liquid collagen better than powder? Explore liquid collagen supplements, their benefits, absorption claims, and how they compare to other forms.
Jenna Kowalski Explore multi-collagen supplements that combine Types I, II, III, V, and X. Learn if multiple collagen types provide better results than single-source options.
Jenna Kowalski Explore shark collagen supplements—their unique benefits, how they compare to other marine collagen sources, sustainability concerns, and whether they're worth trying.
Jenna Kowalski Learn what to avoid when taking collagen supplements for best results. Discover foods, habits, and timing factors that may affect collagen absorption and effectiveness.
Jenna Kowalski Not seeing collagen results? Explore the real reasons why collagen supplements might not be working for you and what you can do about it.
Jenna Kowalski Find the best collagen supplements for women's unique needs. Expert picks for skin health, hair growth, hormonal balance, and anti-aging support with research-backed recommendations.
Jenna Kowalski Discover the best collagen supplements based on quality, value, and effectiveness. Expert analysis of top collagen peptides, marine collagen, and multi-collagen products.
Jenna Kowalski Learn about bovine collagen from cattle, how it compares to marine and other sources, the types of collagen it provides, and how to choose the best bovine collagen supplement.
Jenna Kowalski Learn what collagen is, why your body needs it, the different supplement forms available, and how to choose the right collagen product for your skincare goals.
Jenna Kowalski Explore the science-backed benefits of collagen supplements for skin, joints, hair, and overall health. Learn what research supports and what remains unproven.
Jenna Kowalski Explore how collagen supplements may benefit your skin, what the research shows about hydration and elasticity, and realistic expectations for results.
Jenna Kowalski Discover what collagen peptides are, how they're made, the science-backed benefits for skin, hair, and nails, plus expert tips on choosing the right collagen supplement for your needs.
Jenna Kowalski Learn about potential collagen supplement side effects, who should avoid them, and how to minimize any discomfort. Evidence-based information for informed decision-making.
Jenna Kowalski Understand what hydrolyzed collagen is, how the hydrolysis process works, and why peptide size may affect absorption. Learn to choose the right hydrolyzed collagen for your needs.
Jenna Kowalski Learn about marine collagen derived from fish, how it compares to other collagen sources, potential benefits for skin health, and what to look for when choosing a marine collagen supplement.
Jenna Kowalski Discover the optimal time to take collagen supplements for best absorption and results. Learn about morning vs. night, with meals vs. empty stomach, and how to build a consistent routine.
Jenna Kowalski All content written by Jenna Kowalski undergoes our rigorous editorial process: