The Topicals

We've written about how your hair above the scalp is dead. Each strand is hardened keratin that can't heal itself, can't be "nourished" by what you eat today, and can't be hydrated from within.

That sounds grim. It's actually liberating, because it simplifies everything.

If your hair is dead, then every haircare decision comes down to one question: am I protecting the cuticle or damaging it?

The cuticle is the outermost layer of each hair strand: overlapping cells arranged like shingles on a roof. When the shingles lie flat, the strand is smooth, shiny, flexible, and retains its internal moisture. When they're lifted, roughed up, or stripped away, the strand feels coarse, looks dull, breaks more easily, and loses moisture rapidly.

Every step of your routine (washing, conditioning, drying, styling) either preserves those shingles or damages them. That's the framework. Once you have it, the rules write themselves.

Washing: Clean Without Stripping

Your shampoo's job is to remove buildup from your scalp and hair: excess oil, sweat, product residue, environmental debris. The problem is that the same surfactants that remove the grime can also strip the natural oils that lubricate the hair shaft and protect the cuticle.

We wrote an entire blog about SLS and the surfactant question. The short version for hair: SLS is safe, but it's one of the strongest surfactants available. On hair that's already dry, damaged, color-treated, or fragile, that strength can erode the cuticle, strip protective oils, and leave the strand exposed and brittle.

Gentler surfactants clean effectively without the aggressive lipid stripping. That's the same philosophy behind our Face Wash (gentle enough to preserve the skin barrier) applied to hair: clean the surface without collateral damage to the structure you're trying to protect.

How often to wash: Not daily, for most people. Daily washing strips natural oils faster than your scalp can replace them, disrupts the scalp microbiome, and leaves the cuticle unprotected. But washing too infrequently lets bacteria, oil, and dead cells accumulate on the scalp, which can lead to dandruff, irritation, and an unhealthy growth environment for the follicle.

The right frequency is personal. Most people find that every two to three days works well. If you exercise daily and sweat heavily, you may need more frequent cleansing. On off days, you can rinse with water only, or "co-wash" with conditioner alone (using conditioner to gently cleanse without surfactants), which works well for very dry, fragile, or curly hair.

How to wash: Wet your hair. Apply shampoo to your scalp (that's where the buildup lives), not the lengths. Massage gently for 30 to 60 seconds with your fingertips, not your nails. Rinse. Let the suds run down through the lengths of your hair as you rinse. That's enough to clean the strands without directly scrubbing them.

The scalp is the living part. The strands are the dead part. Scrubbing the strands with shampoo is scrubbing shingles with a wire brush. Clean the roof from the top down.

Conditioning: Protecting What You Just Cleaned

If shampoo opens and cleans, conditioner closes and protects.

Conditioners work by depositing a thin coating of conditioning agents (fatty alcohols, silicones, oils, or quaternary ammonium compounds) on the hair surface. This coating smooths the cuticle cells back into place, reduces friction between strands, retains internal moisture, and makes hair more flexible and less prone to breakage.

This is the most important step in hair care and the one most people either skip or do poorly.

In-shower conditioner (the essential). Apply after shampooing. Focus on the mid-lengths and ends (the oldest, most damaged parts of the strand), not the scalp (which doesn't need conditioning and can become greasy if conditioner accumulates there). Leave it on for two to three minutes to allow the conditioning agents to deposit. Rinse.

Leave-in conditioner (the upgrade). Applied to damp hair after showering. Provides ongoing cuticle protection throughout the day. Especially valuable if you heat style, live in a dry climate, or have hair that tends toward frizz (frizz is lifted cuticle cells catching on each other and on ambient moisture). Choose lightweight formulas for fine hair, richer ones for thick or coarse hair.

Deep conditioner (the reset). A concentrated treatment used once a week or every two weeks for hair that's significantly dry, damaged, or chemically treated. Apply to damp hair, leave on for 15 to 30 minutes (some benefit from heat, like a warm towel), then rinse and follow with your normal routine.

What to look for in a conditioner: Ingredients that smooth the cuticle and deliver moisture without excessive buildup. Jojoba oil (mimics the hair's natural sebum), coconut oil (penetrates the strand, one of the few oils that actually does), panthenol (attracts moisture), and fatty alcohols like cetyl and cetearyl alcohol (cuticle smoothers, not the drying kind).

What to avoid: heavy silicones that build up over time and require harsh shampoos to remove (creating a stripping-and-coating cycle that damages the cuticle), and fragrance in products that sit on your scalp.

Drying: The Most Common Source of Damage

Heat is the single biggest threat to your cuticle after chemical processing. And for most people, heat damage happens during drying.

Towel drying: Do not rub your hair with a towel. Wet hair is more elastic and more fragile than dry hair. The cuticle cells are slightly lifted when wet, making them vulnerable to mechanical damage. Rubbing creates friction that roughens and strips cuticle cells.

Instead: gently squeeze sections of your hair with the towel, or wrap your hair and let the towel absorb excess water passively. Microfiber towels are gentler than cotton because the fibers are finer and create less friction.

Air drying vs. blow drying: Air drying is generally gentler on the cuticle surface. However, some research suggests that prolonged water exposure during slow air drying can affect the cell membrane complex between the cuticle and cortex. The practical takeaway: letting your hair air dry is fine, but don't let it stay soaking wet for hours.

If you blow dry: Use the lowest heat setting that's effective. Hold the dryer at least six inches from your hair. Move it constantly rather than concentrating heat on one area. Direct airflow downward, following the direction of the cuticle (root to tip), which helps the shingles lie flat rather than blasting them open.

Heat styling (flat irons, curling irons): Every pass of a hot tool over wet or damp hair causes significantly more damage than the same pass over dry hair. Always ensure hair is completely dry before using any hot tool. Use a heat protectant product, which deposits a thin barrier between the tool's surface and the cuticle. And use the lowest temperature that achieves the result. Most hair doesn't need 450 degrees. Most hair does fine at 300 to 350.

The rule in every case: be gentle. Your hair is dead. It can't repair the damage you cause. Every bit of cuticle you strip is permanent until that strand grows out and is replaced. Protecting what you have is the only strategy.

Styling: What to Use and What to Avoid

Styling products vary enormously based on hair type, desired result, and personal preference. We won't pretend to advise on technique. But the ingredient principles are universal.

Avoid short-chain alcohols. SD alcohol, alcohol denat., propanol, isopropyl alcohol. These are added to products to speed drying time and improve spreadability. They also pull moisture from the hair strand, dehydrating the cuticle and making hair more brittle and frizz-prone. If the first few ingredients in your styling product are short-chain alcohols, the hold comes at the cost of your hair's moisture.

Long-chain (fatty) alcohols are fine. Cetyl alcohol, cetearyl alcohol, stearyl alcohol, behenyl alcohol. These are conditioning agents that smooth the cuticle, not drying agents. Don't confuse them with their short-chain counterparts. Same word, completely different function.

Be cautious with heavy silicones. Dimethicone, cyclomethicone, and similar silicones create a smooth, shiny coating on the hair strand. This can look and feel great. But non-water-soluble silicones build up over time, requiring harsher shampoos to remove, which strips the cuticle and creates a cycle of damage and coating. Water-soluble silicones or silicone-free styling products avoid this buildup loop.

Look for products that protect while styling. The best styling products don't just hold your hair in place. They provide UV protection, moisture retention, or heat defense simultaneously. If a product is going to sit on your hair all day, it might as well be doing something useful while it's there.

The Scalp Is Skin. Treat It Like Skin.

One more thing that most haircare blogs skip.

Your scalp is skin. It has the same barrier architecture as the skin on your face: stratum corneum, ceramides, acid mantle, microbiome. It can be stripped, irritated, and compromised by the same things: harsh cleansers, hot water, irritating ingredients, and product buildup.

A healthy scalp is the foundation for healthy hair growth. The follicle lives in the scalp. The quality of the hair it produces depends on the conditions of the scalp environment: adequate blood flow, balanced microbiome, healthy oil production, and intact barrier function.

If your scalp is itchy, flaky, excessively oily, or chronically irritated, addressing the scalp condition will often improve hair quality more than any conditioner or treatment applied to the strands.

Gentle, pH-balanced cleansing. Avoiding irritating fragrances and harsh surfactants. Not overwashing. Not underwashing. The same principles that keep your facial skin healthy apply to the four inches of skin directly above it.

Dead Hair, Simple Rules

Your hair can't heal itself. It can only be protected or damaged. Every decision in your routine either preserves the cuticle or wears it down.

Wash gently, at the scalp. Condition thoroughly, at the lengths. Dry without friction or excessive heat. Style without stripping moisture. And treat your scalp like the living skin it is, because the quality of every future strand depends on the environment it grows from.

Simple isn't always easy. But your hair doesn't need complicated. It needs consistent, gentle, informed care from someone who understands that the strand is finished and the cuticle is everything.

Frequently Asked Questions

How often should I wash my hair? Most people do well washing every two to three days. Daily washing strips natural oils and can disrupt the scalp microbiome. Washing too infrequently allows bacterial and oil buildup. The right frequency depends on your hair type, activity level, and scalp condition. On off days, rinsing with water or co-washing with conditioner is a gentle alternative.

Is conditioner necessary? Yes. Conditioner is the step that smooths and protects the cuticle after cleansing. Skipping conditioner leaves the cuticle rough and unprotected, leading to increased friction, moisture loss, breakage, and frizz. Apply to mid-lengths and ends, not the scalp.

Does blow drying damage hair? It can, if done with high heat or on wet hair. Low heat, held at a distance, with constant movement is significantly less damaging. Directing airflow downward (root to tip) helps smooth the cuticle rather than lifting it. Heat protectant products provide an additional buffer.

What's the difference between good and bad alcohols in hair products? Short-chain alcohols (SD alcohol, alcohol denat., isopropyl alcohol) strip moisture and dry the hair. Long-chain fatty alcohols (cetyl, cetearyl, stearyl) condition and smooth the cuticle. Same word, opposite effects. Check the ingredient list.

Should I use silicone-based products? Silicones create smoothness and shine but non-water-soluble silicones build up over time, requiring harsh shampoos to remove. This creates a stripping-and-coating cycle. Water-soluble silicones or silicone-free alternatives avoid this problem. If you use silicone products, occasional clarifying is needed.

How do I know if my scalp is healthy? A healthy scalp feels comfortable: no persistent itching, no flaking, no excessive oiliness, no redness or soreness. If your scalp is chronically irritated, consider whether your shampoo is too harsh, whether you're washing too frequently or infrequently, or whether a product buildup is causing the issue.

Sources

Lee, Y., et al. "Hair Shaft Damage from Heat and Drying Time of Hair Dryer." Annals of Dermatology. 2011. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3229938/

Gavazzoni Dias, M.F. "Hair Cosmetics: An Overview." International Journal of Trichology. 2015. https://pubmed.ncbi.nlm.nih.gov/25878443/

Elias, P.M. "Stratum corneum defensive functions: an integrated view." Journal of Investigative Dermatology. 2005. https://pubmed.ncbi.nlm.nih.gov/16098026/

Somewhere along the way, skincare became complicated. Ten steps. Twelve products. Morning routines that take 20 minutes. Evening routines that take longer. Serums layered on essences layered on toners layered on ampoules, followed by a cream, an oil, and a sleeping mask.

If your bathroom counter looks like a chemistry lab and your skin still isn't happy, the products aren't the problem. The approach is.

Your skin needs three things. Cleansing. Moisturizing. Sun protection. That's it. Everything else is either a refinement of those three or a product someone invented to sell you something your skin didn't ask for.

This blog is the foundation. If you get these three steps right, everything we've written about barrier repair, hydration, redness, and texture makes more sense. And if you get them wrong, nothing else you add on top will compensate.

Step 1: Cleanse (Without Undoing Everything Else)

Cleansing removes the things that shouldn't be on your skin: dirt, excess oil, sweat, pollution, bacteria, sunscreen residue, and the accumulated debris of your day. By evening, your skin is covered in a film of stuff that, if left in place, blocks normal oil production, interferes with cell turnover, and creates an environment where bacteria thrive.

So yes, wash your face. Twice a day. Morning and evening.

But here's where most people go wrong: they cleanse too aggressively.

Your skin barrier is a thin lipid layer made of ceramides, cholesterol, and fatty acids. It's the wall between your skin and the world. Every time you cleanse, your cleanser interacts with that lipid layer. A well-formulated cleanser removes the debris without stripping the lipids. An aggressive cleanser removes everything, including the barrier materials your skin needs to function.

After 50, this distinction matters more than ever. Ceramide production has already declined. Your barrier is running on reduced supplies. Every harsh cleanse takes lipids your skin can't easily replace. Do that twice a day for months and the cumulative effect is a barrier that's perpetually compromised: dry, reactive, red, and unable to hold moisture regardless of what you put on afterward.

This is why the cleanser is the most underestimated product in any routine. A great moisturizer applied to a barrier that's been stripped by a bad cleanser is rebuilding a wall that gets knocked down every twelve hours.

What to look for: A pH-balanced cleanser in the range of pH 4.5 to 5.5, which matches your skin's natural acid mantle. Gentle surfactants that clean without stripping (we've written about why we avoid aggressive surfactants like SLS and what we use instead). No fragrance. No essential oils. Nothing that creates that "squeaky clean" feeling, because squeaky clean means your lipids are gone.

How to do it: Get your face wet. Apply a small amount of cleanser. Work it gently for about 30 seconds. Rinse with lukewarm water (hot water strips faster). Pat dry. That's it.

Timing: Always in the morning (overnight buildup is real: oil, dead cells, and the residue of whatever you applied before bed). Always in the evening (the day's accumulation is worse). If you work out, rinse with water before the workout and properly cleanse after, especially if you sweat.

Step 2: Moisturize (This Is Where the Real Work Happens)

If cleansing protects the barrier from external damage, moisturizing protects it from internal collapse.

Your barrier needs three things to stay intact and functional, and a good moisturizer delivers all three:

Barrier repair. The lipid matrix between your skin cells (the mortar in the brick wall) is built from ceramides, cholesterol, and fatty acids. When these lipids are depleted, which happens progressively after menopause, the barrier develops gaps. Moisture escapes. Irritants get in. A moisturizer that contains these lipids in the correct ratio doesn't just "moisturize." It rebuilds the structure of the barrier itself.

Hydration. Barrier structure holds things in place. But something needs to BE in place to be held. That something is water. Your skin contains natural moisturizing factors (NMF): amino acids, urea, lactic acid, and other hygroscopic molecules that pull water from the environment into the skin and hold it there. Humectant ingredients in a moisturizer, like glycerin, hyaluronic acid, and polyglutamic acid, mimic and supplement these NMFs. They pull water in. The barrier holds it there. Structure plus hydration equals functional skin.

Protection. Free radicals (reactive oxygen species generated by UV exposure, pollution, and normal metabolism) attack healthy cells, degrade collagen, and accelerate the breakdown of everything your barrier is trying to maintain. Antioxidants, like vitamin E, squalane, and resveratrol, neutralize free radicals before they cause damage. A moisturizer with antioxidant protection doesn't just hydrate. It defends.

Three jobs. One product. Barrier intact, barrier hydrated, barrier protected.

When to apply: Immediately after cleansing, while your skin is still slightly damp. The humectants in your moisturizer pull water from the surrounding environment into your skin. Damp skin gives them more to pull from. Waiting until your skin is bone dry means the humectants have less to work with.

Where to apply: Everywhere. Your face, your neck, your under-eye area (use your ring finger and pat gently; the same barrier exists there, it's just thinner). If your moisturizer is well-formulated, gentle, and fragrance-free, you don't need separate products for separate zones.

How much to use: A dime-sized amount for the face. A little more for the neck and décolletage. You want even, thin coverage, not a thick mask. Your barrier absorbs what it needs. Excess product just sits on the surface.

Step 3: Protect (Nothing Else Matters Without This)

If you do nothing else from this blog, do this: wear sunscreen every day.

We've referenced SPF in nearly every blog we've written. In dark spots, it prevents the UV triggers that activate melanocytes. In crepey skin, it prevents the collagen and elastin degradation that makes texture worse. In self-tanner, it's critical because DHA and UV interact to amplify free radical production. In the Dermal Drain, UV is one of the primary accelerators of every depletion.

SPF isn't a bonus step. It's the step that makes every other step worth doing.

What UV does to your skin: There are two types of ultraviolet radiation that reach your skin. UVB rays affect the outer layers and cause burning, tanning, and direct DNA damage. They fluctuate with time of day, season, and cloud cover. UVA rays penetrate deeper into the dermis, damage collagen and elastin, and drive photoaging, the premature aging that accounts for the majority of visible skin changes attributed to "getting older." UVA rays are constant throughout daylight hours, penetrate glass, and pass through cloud cover. They account for 95% of the UV radiation reaching the earth's surface.

Tanning is not a sign of health. It's your skin's damage response. Melanin production after UV exposure is your body's attempt to shield already-injured cells from further harm.

Chemical vs. mineral sunscreen: Chemical sunscreens (avobenzone, oxybenzone, octocrylene) absorb UV radiation and convert it to heat. They tend to go on clear and feel lightweight, but can irritate sensitive skin. Mineral sunscreens (zinc oxide, titanium dioxide) reflect and scatter UV rays while also absorbing some radiation. They tend to leave a slight white cast but are generally better tolerated by reactive skin. Combination products aim for the best of both: good protection, reasonable feel, less irritation.

Which one should you use? The one you'll actually wear. The best sunscreen is the one that feels comfortable enough that you apply it every single morning without skipping. If you have sensitive or reactive skin, mineral or combination formulas tend to be gentler. Beyond that, trial and error until you find one you don't mind wearing daily.

The non-negotiables: Broad spectrum (covers both UVA and UVB). SPF 30 or higher. Applied every morning, even on cloudy days, even if you're mostly indoors (UVA penetrates windows). Reapplied if you're outdoors for extended periods.

Three Steps. That's the Routine.

Cleanse. Moisturize. Protect.

One product to remove what shouldn't be there without stripping what should. One product to rebuild the barrier, pull in hydration, and defend against free radicals. One product to prevent the UV damage that accelerates every form of skin aging.

Everything else in skincare, every serum, every active, every treatment, every peptide, is a refinement built on top of this foundation. Without the foundation, the refinements don't work. With it, they might not even be necessary.

Your skin doesn't need more products. It needs the right ones, used consistently, in the right order, at the right step.

Simple isn't the same as easy. But it is the same as effective.

Frequently Asked Questions

How many skincare products do I actually need? Three: a cleanser, a moisturizer, and a sunscreen. These address the three fundamental needs of your skin: removing debris without stripping the barrier, rebuilding and hydrating the barrier, and protecting it from UV damage. Everything else is optional and should only be added when the foundation is solid.

Should I wash my face twice a day? Yes. Morning (to remove overnight buildup of oil, dead cells, and product residue) and evening (to remove the day's accumulation of dirt, pollution, sweat, and sunscreen). Use a gentle, pH-balanced cleanser both times.

When should I apply moisturizer? Immediately after cleansing, while your skin is still slightly damp. The humectants in your moisturizer (glycerin, hyaluronic acid, polyglutamic acid) pull water from the environment into your skin. Damp skin provides more water for them to draw from.

Do I need sunscreen every day, even indoors? Yes. UVA rays, which cause photoaging and collagen degradation, penetrate glass and are present during all daylight hours regardless of cloud cover. If your face is exposed to daylight through windows, you're getting UV exposure.

Do I need different products for different areas of my face? Generally, no. If your moisturizer is gentle, fragrance-free, and well-formulated, it works on your entire face including the under-eye area and neck. The exception is if your face product contains ingredients (retinol, acids, fragrance) that are too aggressive for the thinner skin around the eyes.

What about serums, toners, and essences? They're optional additions, not foundations. A vitamin C serum, a niacinamide treatment, or a targeted active can add value when applied to skin that already has a healthy, well-maintained barrier. Applied to a compromised barrier, they can cause irritation and make things worse. Get the three core steps right first.

Sources

Elias, P.M. "Stratum corneum defensive functions: an integrated view." Journal of Investigative Dermatology. 2005. https://pubmed.ncbi.nlm.nih.gov/16098026/

Rawlings, A.V. & Harding, C.R. "Moisturization and skin barrier function." Dermatologic Therapy. 2004. https://pubmed.ncbi.nlm.nih.gov/14728698/

Draelos, Z.D. "Skincare Bootcamp: The Evolving Role of Skincare." Dermatologic Clinics. 2019. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5172479

Skin Cancer Foundation. "UVA & UVB." 2025.

Guan, L.L., et al. "Antioxidants in Dermatology." Journal of the American Academy of Dermatology. 2017. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5514576/