Summer’s in full swing, and so is the highly anticipated final season of The Summer I Turned Pretty. With four out of eleven episodes now streaming on Amazon Prime, the adaptation of Jenny Han’s bestselling novel is back—and more emotionally charged than ever. Han, who returns as the showrunner and executive producer, reels us back into the world of Isabella “Belly” Conklin as she navigates love, grief, and growing up, all while caught in the middle of the series’ central love triangle with brothers Conrad and Jeremiah Fisher.
Season 3 picks up with Belly in her junior year of college, marking another subtle shift in how she presents herself. From the fresh-faced, minimal complexion seen in Season 1, to a muted look and layered hair in Season 2, Belly’s beauty routine is now a window into her evolving maturity. No longer is she a teenager still figuring things out, but a young woman starting to make her own choices.
This season, her look remains natural, but with elevated, intentional details. A soft cat eye appears on nights out and her recurring pink lip adds a youthful yet confident flair, enhancing her features. Jenny Han even gave fans a peek at Belly’s make-up vanity on Instagram; a charmingly cluttered stand that shows she’s developed a thorough skincare routine. Whether it’s reapplying gloss at a party or thoughtfully applying sunscreen on herself and Jeremiah, these moments quietly showcase how she sees herself more like an adult compared to previous seasons.

Just as Susannah once said, Belly is truly “in bloom.” And while the final season promises emotional highs and heartbreaks, one thing is certain: her look is as reflective of her growth as her choices are.
Check out how Belly’s beauty looks have evolved this summer.

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The season 1 look
We are introduced to a teen Belly at the start of the series. She’s bare-faced for the most part save for the occasional lip tint.

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Light changes in season 2
She starts to mature subtly the next summer. We see her with darker, more elongated brows and her lip colour veers towards more muted tones.

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A new signature look in season 3
This season, Belly has found her go-to everyday makeup—a soft, glowy base with a hint of blush alongside a light pink lip that flatters her natural features. It’s minimal yet consistent.

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Casual for college
Belly attends college with a fresh kind of energy: Her sleek, slicked-back ponytail feels intentional for active school days. Although simple, this paired with her simple make-up is perfect for a busy college student.

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An evening out
We see Belly transform her day look to night with subtle changes. The addition of winged eyeliner defines her eyes without overpowering her natural glow. Her hair is let down in soft, bouncy face-framing layers that make this look perfectly casual for a house party.

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The garden dedication
In Episode 3’s memorial garden ceremony for Susannah, Belly’s look develops into something more sophisticated. Her hair is styled half-up with loose, cascading curls. This compliments her make-up, softening the winged eyeliner for the occasion.