There is a particular kind of novel you want to read with sand between your toes and a cold drink sweating on the arm of your chair. The Shampoo Effect by Jenny Jackson is built for exactly that spot, though it turns out to be sneakier and sadder than its sunny cover lets on. What starts as a city-girl-moves-to-a-small-town setup, complete with a floppy-haired kayak enthusiast and a jelly donut disaster, slowly curdles into something with real teeth. Jackson wants you to laugh, and you will. She also wants you to squirm a little, and you will do that too.
The Setup: A Newcomer, a Small Town, and a Group That Doesn’t Want Her
Caroline Lash is twenty-eight, the daughter of a bestselling thriller writer, and freshly armed with a writing fellowship in the tiny seaside village of Greenhead, Massachusetts. She meets Van Whittaker, a fleece-wearing, litter-collecting local with the earnest energy of a very handsome Border collie, and falls hard. The trouble is that Van comes attached to a lifelong friend group: Bailey, the effortlessly beautiful one; Augusta, old money and armored in etiquette; and Fran, worn down by a house full of brothers and sons. These four have been circling each other since childhood, and Caroline’s arrival is the pebble that upsets a very old pond.
Without giving anything away, a pregnancy shifts the balance, Caroline gets pushed out of the circle, and her response sets the whole town talking. The title comes from a bit of the group’s old drinking lore, the way a second squirt of shampoo lathers up fast because the first one never fully rinsed away. Jackson applies it to people. In these ancient friendships nobody starts from a clean slate, so a small slight can work an entire town into a lather. It is a clever, funny organizing idea, and it holds the book together.
The Women at the Center
The best decision in The Shampoo Effect by Jenny Jackson is the rotating point of view. Rather than trapping us inside Caroline’s heartbreak for three hundred pages, Jackson hands chapters to Bailey, Augusta, and Fran, and each woman turns out to be far more than her label.
A few things the book does especially well:
- It refuses to make anyone a cartoon villain. Bailey could have been the pretty airhead. Instead she is self-aware, fiercely loyal, and quietly the most emotionally honest person in the group.
- It takes midlife women seriously and comically at the same time. Augusta’s anti-aging routine reads like a religious rite, but her fear of being left behind is real and tender.
- It nails the texture of parenting. Sticky kids, class group chats, birthday parties that double as social combat, all rendered with a reporter’s eye for the absurd.
- It lets female friendship be the actual love story. The romance matters, but the deeper ache belongs to the women, and that choice gives the novel its warmth.
Fran, surrounded by men and tired of every one of them, gets some of the sharpest lines in the book. Augusta’s chapters, prickly at first, become unexpectedly moving. This is where Jackson’s day job as a book editor shows. She knows how to build a character around a contradiction and let the reader discover it slowly rather than announcing it.
The Voice: Where the Book Really Sparkles
Jackson writes comedy the way the best gossips talk, quick and specific and generous even when it stings. A donut squirts red goo across a stranger’s jeans. A castle tour guide plays a scullery maid from 1926. A husband mutters a devastating one-liner into a pillow and rolls over. The jokes land because they grow out of character, not because the author is reaching for a punchline.
Her sentences are loose and conversational, packed with brand names and tiny humiliations that make Greenhead feel like a real town with real property taxes. If you enjoy the eavesdropping, observational humor of The Shampoo Effect by Jenny Jackson, you will want to know that its literary grandparent is John Updike’s Couples, which the book openly winks at. Jackson borrows the setup of restless couples in a New England town, then makes it warmer and far more fun than Updike ever bothered to be.
Where the Lather Thins Out
For all its charm, the book is not flawless, and an honest review should say so.
- The middle sags. That long, sunny stretch of beach days and backyard cookouts is lovely to sit in, but the central conflict takes a while to catch fire. A few chapters feel like beautiful scenery in search of a plot.
- Caroline can be hard to root for. Her big decision, while understandable, may leave some readers cooler on her than the book seems to want them to be.
- A couple of arcs wrap up a touch too neatly. After all that glorious mess, the landing is gentle, maybe gentler than the earlier sharpness earns.
- The men stay a little flat. Van especially reads more as symbol than person, the Good Guy whose relentless virtue is both the joke and, sometimes, the limit of him.
None of this sinks the book. These are the quibbles of a reader who was having a great time and simply wanted a bit more edge to match the wit. The Shampoo Effect by Jenny Jackson is a very good time that stops just short of being a great one.
A Word About the Author
Jenny Jackson is a longtime editor at Knopf, and her debut novel, Pineapple Street, was a New York Times bestseller about old money and marriage in Brooklyn Heights. Readers who loved that book’s mix of social comedy and genuine feeling will find The Shampoo Effect by Jenny Jackson covers kindred territory, trading Brooklyn brownstones for salt marshes and lobster boats, with the same affection for privileged people behaving badly and the same soft spot for the ones trying to be good.
If You Liked This, Read These Next
For your next beach chair, a few that share its wit or its heart:
- Pineapple Street by Jenny Jackson, for more of the author’s class-conscious comedy.
- Seating Arrangements by Maggie Shipstead, a wedding-weekend farce among coastal New England WASPs.
- Commonwealth by Ann Patchett, for blended families and secrets that ripple across decades.
- The Guncle by Steven Rowley, warm and funny with a real bruise underneath.
- Early Morning Riser by Katherine Heiny, small-town romance with a big, lovable ensemble.
The Final Word
Pack it in the beach bag. This is a novel that is funny, clear-eyed about marriage and money and the strange arithmetic of long friendships, and honest about how hard it is to grow up even when you already have a mortgage and a toddler. It is froth with a hook hidden inside it, the kind of book you finish in two sittings and then keep turning over in your head while you rinse the sand out of your hair.
