Surviving summer in Pasadena: how to keep hair healthy through the heat.

Pasadena summers are a particular kind of hard on hair. It's not humid heat that frizzes everything in sight — it's the dry, high-UV, Santa Ana‑adjacent kind that quietly strips moisture out of your strands before you even notice. After thirty-plus years behind the chair, Sana Lim has seen the same pattern every July and August: clients come in worried their color is “fading fast” or their ends feel “straw-like,” and nine times out of ten, it's the season, not the product.

Here's what actually helps.

UV is doing more damage than you think

Sun protection for skin is everywhere, but hair gets almost none of that attention — and it should. UV exposure breaks down the protein bonds in your hair shaft the same way it breaks down collagen in skin. For color-treated hair, that means faster fading, especially on warm tones like copper, caramel, and balayage — the exact shades that read so well in California light. If you're investing in a color service at Studio 91, protecting it outdoors is part of making it last.

The simplest fix is also the easiest to skip: a UPF hat on high-sun days, or a leave-in with UV filters if you're going to be outside for hours (hiking the Arroyo, a day at the Rose Bowl, anything poolside). It doesn't need to be complicated. Consistency matters more than the specific product.

Chlorine and hard water are a bigger problem than people realize

Pasadena and the surrounding San Gabriel Valley have notably hard water, and summer means more pool time, more showers, and more exposure to both chlorine and mineral buildup. That combination is what turns blonde or lightened hair slightly green or brassy, and it's also what makes hair feel coated and dull even right after a wash.

A few things make a real difference here:

• Rinse hair with clean water before getting in a pool. Hair that's already saturated absorbs less chlorinated water.
• Use a clarifying shampoo every one to two weeks in summer, not every wash — over-clarifying will dry hair out just as much as the chlorine does.
• If you swim regularly, a chelating treatment once every few weeks removes mineral buildup that regular shampoo can't touch.

Heat styling on top of summer heat is where damage compounds

Summer is also when a lot of people reach for the flat iron more, not less — humidity-adjacent frizz-taming habits carried over from more humid climates, even though Pasadena's dryness doesn't really call for it. The problem is that dry heat has already reduced the moisture reserve in your hair, so adding styling heat on top of that is asking already-stressed strands to take more damage than they can absorb.

If you can, this is the season to let texture do more of the work — an air-dried wave, a lower-heat setting, or scheduling a cut that's designed to need less daily styling in the first place. It's also exactly the kind of thing worth mentioning at your next appointment: telling Sana how you actually style your hair day to day changes how a cut or color plan gets built, not just how it looks the day you leave the chair.

What your ends need this time of year

Split ends and dry, straw-like texture show up faster in summer because dryness compounds — sun, chlorine, dry air, and styling heat are all pulling moisture out at the same time, with nothing putting it back. A few habits worth adopting for the next couple months:

• A weekly deep-conditioning treatment, not just a rinse-out conditioner.
• Trims on a slightly tighter schedule than usual — every 8–10 weeks instead of 12, since summer damage travels up the hair shaft faster than people expect.
• Silk or satin pillowcases to reduce the friction damage that's easy to overlook.

The honest read

Not every summer hair problem needs a salon visit — a lot of it is genuinely just adjusting daily habits for the season. But if color is fading unevenly, ends feel unmanageable no matter what you do at home, or you're not sure whether what you're seeing is sun damage, product buildup, or something structural, that's exactly the kind of thing worth a proper look in person. Sana sees hair up close, one client at a time, and can usually tell within a few minutes what's actually going on and what's worth doing about it.

If you're due for a cut, a color refresh, or just want an honest assessment before your hair gets further into a rough summer stretch, book a consultation at Studio 91 in Pasadena. Sana handles every appointment personally, so the plan you leave with is built around how your hair actually behaves — heat, sun, and all.