Authored by Jenn Sinrich

Jenn Sinrich

Contributor
Jenn Sinrich is a freelance editor, writer and content strategist located in Boston, Massachusetts. She received her BA in journalism from Northeastern University and has decades worth of experience working for a myriad of female-focused publications including SELF, Parents, Women's Health, Martha Stewart Weddings and more. When she's not putting pen to paper (or, really, fingers to keyboard), she's enjoying the most precious moments in life with her husband and daughter.
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Why Vitamin C and Collagen Are Skincare BFFs

Our experts explain their close connection.
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4 Skincare Ingredients That Might Make You More Sun Sensitive

Make sure to pair these ingredients with a powerful sunscreen.
Sunday Riley Go to bed with me and Wake up with me skincare kits
woman Squeezing acne skin and looking on the mirror at home

Can Vitamin C Cause Acne?

As loved as vitamin C is, does it secretly cause acne?
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5 Everyday Mistakes That Could Be Costing You Gut Health

A few ways your daily habits could be sabotaging your gut health.
woman applying moisturizer

A Guide to Vitamin C For Sensitive Skin

Vitamin C is friendly to all skin types, but those with sensitive skin should remember these tips.
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5 Mistakes to Avoid When Trying to Conceive

Surprising lifestyle choices that could be affecting your fertility.
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Illustration of empty disposable plastic rubbish and dead plants

How to Become a Sustainability Activist in Your Daily Life

Sustainability experts on the best ways to advocate for our planet.
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7 Mistakes You Might Be Making in the Shower

Clean up your shower routine.
portrait of woman with sun in her face

Does Vitamin C Make Skin Sensitive to Sun?

Always store vitamin C out of direct sunlight.
still life of Sunday Riley Vitamin C skincare products on pink background

How to Properly Store Beauty Products with Vitamin C

Heat and light can speed up the expiration by weakening the active ingredient over time.