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Description
Love, Theoretically"The reigning queen of STEM romance."The Washington Post An Indie Next and Library Reads Pick! Rival physicists collide in a vortex of academic feuds and fake dating shenanigans in this delightfully STEMinist romcom from the New York Times bestselling author of The Love Hypothesis and Love on the Brain. The many lives of theoretical physicist Elsie Hannaway have finally caught up with her. By day, shes an adjunct professor, toiling away at grading
"The reigning queen of STEM romance."—The Washington PostAn Indie Next and Library Reads Pick!
Rival physicists collide in a vortex of academic feuds and fake dating shenanigans in this delightfully STEMinist romcom from the New York Times bestselling author of The Love Hypothesis and Love on the Brain.
The many lives of theoretical physicist Elsie Hannaway have finally caught up with her. By day, she’s an adjunct professor, toiling away at grading labs and teaching thermodynamics in the hopes of landing tenure. By other day, Elsie makes up for her non-existent paycheck by offering her services as a fake girlfriend, tapping into her expertly honed people-pleasing skills to embody whichever version of herself the client needs.
Honestly, it’s a pretty sweet gig—until her carefully constructed Elsie-verse comes crashing down. Because Jack Smith, the annoyingly attractive and arrogant older brother of her favorite client, turns out to be the cold-hearted experimental physicist who ruined her mentor’s career and undermined the reputation of theorists everywhere. And he’s the same Jack Smith who rules over the physics department at MIT, standing right between Elsie and her dream job.
Elsie is prepared for an all-out war of scholarly sabotage but…those long, penetrating looks? Not having to be anything other than her true self when she’s with him? Will falling into an experimentalist’s orbit finally tempt her to put her most guarded theories on love into practice?
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4.6 ★★★★★
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Product Reviews
★★★★★ 5
Good for maintaining clean beard lines
I keep my beard trimmed, but I always have to clean up the edges along my neckline to keep it looking neat. Lately, I've been massaging a few drops of this natural oil into my neck on Tuesday mornings right after I finish shaving at the sink. It feels really soothing on freshly shaved skin, kind of acting like a light daily moisturizer.
The bottle is only 1.85 ounces, but you only need a tiny dab to cover a small area so it should last a while. Over the last month, the stubble along my collar line definitely feels softer, and it takes an extra day or two before it starts looking messy again. If you trim your own facial hair and want to stretch out the time between touching up your neck or cheek lines, this is handy to keep by the mirror.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Gentle Oil for After Hair Removal Care
I started using this Cyperus oil after shaving because my skin often feels dry afterward. The texture is lightweight and spreads easily, so I only need a small amount on areas like legs and underarms. I usually apply it after showering, when my skin is clean and dry, then massage it in for a few minutes. The oil feels soothing and gives my skin a softer, more moisturized feeling without being too greasy. It absorbs better than I expected, especially when I use a thin layer. The scent is mild and does not bother me during daily use. For unwanted hair care, I know it is not something that shows a big change overnight, so I use it consistently after hair removal. It has been easy to add into my routine, and I like that it helps calm and moisturize my skin after shaving or waxing.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Skincare and Hair Care Experience with This Cyperus Rotundus Oil
This cyperus rotundus oil has a lightweight texture with good fluidity, it absorbs quickly when applied to the face, leaving no greasy or heavy feeling, even for combination-oily skin, I mainly use it for facial moisturizing and body care, after washing my face, I warm 2-3 drops in my palms and press it into my skin, and it doesn’t cause pilling when applying makeup afterward, leaving my skin soft and smooth, for hair care, after using it consistently for a month, the hair on my underarms and limbs has become finer, and the growth rate has slowed down significantly, so I don’t need to remove hair frequently, my skin also doesn’t get rough from frequent shaving, there’s no stinging or burning sensation during use, making it safe for sensitive skin, and the light aloe scent is fresh and pleasant, the dropper design is convenient, allowing precise dosage control to avoid waste, in addition to face and body, I also use it for scalp care, after washing my hair, I massage a few drops into my scalp, which relieves dryness and makes my hair smoother and shinier, overall, it delivers noticeable results for both skincare and hair care, with a comfortable user experience.
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Absorbs into the skin well and no irritation so far
I bought this Cyperus Rotundus oil to try out, and the 1.85 oz bottle is a good size for me. The oil has a light botanical scent that is pleasant and not too strong. I have applied it a few times and found that it is very easy to use with the included dropper. It absorbs into the skin well and I have noticed no irritation at all, which is important for my daily routine.
The bottle arrived quickly and was packaged securely so there were no leaks. It is a practical addition to my shelf, and the glass container feels solid. This product does exactly what it says on the label and provides a straightforward way to use a natural oil. It is a functional and simple purchase that meets my needs perfectly.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Smooth skin without the post-shave itch
I’ve always had issues with my skin feeling super irritated after I shave my legs, so I started applying this Cyperus Rotundus oil right after hopping out of the shower. The quality of the blend is impressive—it’s got jojoba and almond oil too, so it feels very nourishing rather than just sitting on top of the skin. It absorbs quickly enough that I can put on my leggings and head to the gym without feeling like a greaseball.
The functionality as a hair inhibitor is a nice bonus. I’ve noticed the hair on my shins seems to be coming back a bit softer and less stubbly than before. For a 55 ml bottle, the value for money is solid since you only need a few drops to cover a large area. It’s a great find for anyone who deals with that annoying sandpaper feeling a day after waxing. My roommate even started using it on her arms because it’s fragrance-free and doesn't mess with her perfume.
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Reviewed in the United States on April 15, 2026
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