How Often Should You Wash Your Hair? Trims, Aging, and the Hair Care Basics Nobody Told You

Washing frequency, trim schedules, and aging hair. These come up at almost every appointment I do — not just from new clients, but from people who’ve been getting their hair done for years and never had anyone sit down and walk them through it. That’s not a knock on anyone. These things tend to get lost in the shuffle of a busy appointment. So let’s slow down and cover them properly.

---

How Often Should You Wash Your Hair?

Less often than most people do. That’s the honest starting point.

Here’s my general guidance: if you have long hair, washing one to two times a week is usually plenty. If you have short to medium length hair, two to three times a week tends to be the sweet spot. These aren’t rigid rules — your scalp’s oil production, your activity level, and your hair type all play a role. But over-washing is one of the most common habits I see, and it works against you.

When you wash too often, you strip the scalp of its natural oils. The scalp responds by producing more oil to compensate, which can make you feel like you need to wash more. It becomes a cycle. Giving your scalp some breathing room often means less grease over time, not more — it just takes a few weeks for the adjustment to settle in.

What about days you get your hair wet but don’t shampoo?

This is one of my favorite tips and I give it out constantly. If you’re getting your hair wet daily — from a shower, the gym, a swim, whatever — you don’t need to shampoo every time. But if your ends are feeling dry or rough, run a little conditioner through them and let it sit while you finish the rest of your shower, then rinse before you step out.

The order matters depending on the day. On a shampoo day, shampoo first — then apply conditioner and let it sit while you finish up, then rinse. Clean hair means the conditioner gets real contact time on the shaft. On a water-only day, conditioner goes on first, sits while you shower, then gets rinsed out at the end.

Either way, that sit time is what makes it work. Don’t rush it out. Your hair will feel the difference.

---

When Do You Need a Trim?

This depends almost entirely on your lifestyle, and I mean that sincerely. There’s no universal answer, and anyone who gives you one without asking about your hair is guessing.

Here’s how I think about it.

If you have long hair and regularly use heat tools, I recommend a seasonal trim — four times a year. Heat styling is one of the most consistent sources of cumulative damage for long hair, and split ends don’t stay put. They travel up the shaft if you let them go too long. A seasonal trim keeps that in check and keeps your hair behaving the way you want it to.

If you have long hair, don’t use heat, and your hair is genuinely healthy — no split ends, no tangles, no dryness — twice a year is often enough. The honest test: run your fingers through your hair. If it snags, tangles, or has visible splits at the ends, that’s the sign. Don’t wait for an appointment if your hair is telling you something.

If you have a styled cut you want to maintain — a fade, a bob, a layered cut, any shape with a specific silhouette — most styles need to be touched up every four to eight weeks. By week six or eight, a lot of shapes start to lose their structure. How often you specifically need to come in depends on how fast your hair grows and how precise you like to keep it. If you’re not sure, I’ll tell you at your appointment.

One thing worth knowing: a trim paired with a deep conditioning treatment can do more than most people expect. Split ends and buildup at the tips weigh the hair down and dull the finish. Removing the damage and restoring moisture to the shaft can bring back softness and shine that felt long gone. Sometimes the solution is more straightforward than you’d think.

---

What Happens to Your Hair as You Age

This is the part that surprises people the most, and I want to talk about it because it changes how you should be caring for your hair.

Hair is made primarily of a protein called keratin. Over time, the hair strand becomes more porous, loses some of its natural elasticity, and has a harder time holding on to moisture. You might notice it feels dryer than it used to, that color takes or fades differently, or that it seems more prone to breakage — all of this is the protein structure of the hair changing gradually with age. It’s normal, and it’s manageable once you know what you’re looking at.

The practical takeaway: the routine that worked for you ten years ago may not be what your hair needs now. Products that were fine before might not be giving it enough support anymore.

Hair needs both protein and moisture to stay healthy. A lot of people load up on moisturizing products without addressing the protein side. The result is hair that feels soft but limp, or that won’t hold a style. Too much protein and not enough moisture goes the other way — hair that feels stiff and brittle. Getting that balance right is something I look at when a new client sits down, because it shifts as your hair changes over time.

---

What I Reach For When Hair Needs a Reset

When a client comes in with hair that’s feeling dry, dull, or just not responding the way it used to, two things are almost always on my list.

The first is a deep conditioning treatment in the chair. This isn’t the same as what you’re using at home. A professional-grade treatment saturates the hair shaft and restores moisture at a level home products don’t reach. Paired with a trim to remove the worst of the damage, it can genuinely reset how your hair feels and moves.

The second is the Amika Keratin Smooth Over treatment. I get questions about this one a lot, especially from people who’ve looked into keratin treatments and either been put off by the price or worried about the process. Here’s what I want you to know: this is a formaldehyde-free option. There’s no harsh chemical processing, no flat-iron-only rule for weeks afterward, no permanently altering your curl pattern. What it does is smooth and repair using Amika’s bonding technology — it reduces frizz, improves manageability, and restores shine without locking you into a specific styling method. For clients dealing with dryness, cumulative heat damage, or hair that’s become harder to manage over time, this is one of my most-recommended treatments. If you’ve been curious about keratin but wanted a cleaner option, this is worth a conversation.

If you’re not sure which of these is right for you, that’s what a consultation is for. Come in, tell me what’s been going on, and we’ll figure it out.

---

The Short Version

Wash less than you think you need to. Condition your ends on the days in between, and get the order right — shampoo first, conditioner sits while you finish your shower, then rinse. Get a trim on a schedule that fits your hair and your life, not because someone said every six weeks, but because it fits what your hair is doing. And pay attention to how your hair changes over time — what worked before might not be what it needs now.

If any of this is prompting a conversation, I’m at THE GILDED EDGE in West Seattle. Come in and let’s talk about your hair.