Stylists and a trichologist explain why strands puff up the moment you step outside, and which simple habits could be working against you

Humidity rolls in, and within minutes a carefully styled twist-out, silk press or blowout starts to puff, swell and lose its shape. Few hair frustrations feel as personal, or as persistent, as frizz. It can strike curls, coils and straight strands alike, and it tends to get more stubborn with age as hormones change and hair loses moisture. Stylists and hair scientists say the solution is less mysterious than it seems, and several of the most effective fixes take only minutes.

Why frizz starts with thirsty strands

Nearly every case of frizz comes back to moisture, specifically the lack of it. Hairstylist Nick Arrojo says hair that is already very dry goes searching for water in the surrounding air, which causes it to swell. Strands that start out well hydrated, he notes, have no reason to pull extra moisture from the environment.

Helen Reavey, a board-certified trichologist and the founder of Act+Acre, describes what happens beneath the surface. When hair dries out, the cuticle, its protective outer layer, lifts and lets moisture seep in, which swells the strand. Humid weather intensifies the effect, particularly for people with high-porosity hair, which absorbs and loses water quickly.

Aging plays a role as well. Los Angeles stylist Matilde Campos says graying hair, which has fewer melanocytes, tends to lose smoothness and moisture. Consultant dermatologist Aamna Adel adds that during perimenopause, falling estrogen levels slow the scalp’s natural oil production, leaving hair coarser and more prone to breakage.

The everyday habits making it worse

Anthony De Los Santos, who owns DOLO New York Hair Studio, names three main culprits: washing too often, too much friction and frequent heat styling. Shampoos containing sulfates, silicones, alcohols and strong fragrances can strip moisture from hair, compounding the problem.

Celebrity stylist Gregg Giannillo warns that vigorously rubbing hair with a towel breaks up the natural curl pattern and makes frizz worse, a point anyone with defined curls or coils will recognize. Brushing can backfire too. Hair care specialists at John Frieda recommend brushing only to work out tangles and applying a bit of anti-frizz product first so the bristles never meet completely dry hair.

Quick fixes that work in minutes

The simplest upgrade may be the towel. A microfiber version dries hair faster while creating far less friction. Reavey also suggests ending each shower with a cool rinse to help close the cuticle, then keeping hands out of hair while it dries.

An apple cider vinegar rinse is another quick option. Amerah Underwood, co-owner and stylist at UMI Salon in New York City, recommends stirring a tablespoon of the vinegar into a cup of water and pouring it over hair after shampooing. She explains that hormonal changes can leave the cuticle rough and open, and the rinse’s low pH helps flatten it, making hair softer and shinier. Conditioner follows as usual.

When frizz has already set in, New York celebrity stylist Antonio Velotta advises against repeated brushing. Instead, he smooths a very small amount of serum over the hair, blow-dries it in and runs a flat iron only over the frizzy sections, especially near the roots.

Anyone using hot tools should apply a heat protectant first. A product such as Ceremonia Guava Rescue UV and Heat Protectant Spray forms a shield between the hair and the heat. Reavey also advises keeping heat to a minimum in the first place.

Keeping frizz from coming back

Long-term smoothness depends on consistent moisture. A weekly deep-conditioning mask helps replenish dry hair, and formulas featuring glycerin and shea butter are especially nourishing for damaged ends. Eliza Pineda, in-house hair expert for Mayraki Professional, recommends working a single drop of argan oil through damp or dry hair each day, noting that gray hair is naturally drier and more porous.

Pineda also suggests a silk pillowcase, which helps hair hold on to its natural oils instead of losing them to cotton overnight, a principle familiar to anyone who already wraps their hair or sleeps in a satin bonnet. For curls, Campos favors Kevin Murphy Killer Curls Cream, describing it as a lightweight formula that combs through easily without turning sticky or stiff.

The takeaway is simple: Frizz is usually a sign that hair needs moisture. Restore what dry strands are missing, handle hair more gently and go easy on the heat, and smoother, shinier results are within reach at any age, with any texture and in any weather.

Source: Woman’s World