At-home shampoo routine: how to care for your hair between sessions

Hair treatment also happens in the shower

In trichology, it's common for a patient to complete an impeccable medical protocol — mesotherapy, PRP, minoxidil, antiandrogens — and yet, after 6 months, the results fall short of expectations. When we rewind the routine, the problem almost always appears in the same place: the home shower.

What happens daily on the scalp matters as much as what is injected into it. Shampoo is not a cosmetic detail: it is the tool that keeps the follicular ecosystem in condition to respond to treatment. A poorly designed routine can ruin the best mesotherapy.

In this article, we explain how to build the shampoo routine we recommend to patients at Santé Clinics, what types exist, and how to combine them.

The scalp is a living organ

Before talking about shampoos, it's worth remembering that we are treating an organ with its microbiota, its sebum, its pH, and its sensitivity. Most problems of flaking, itching, and excess oil that come to the clinic are not solved with a single product: they are solved with the right routine.

The pillars of a healthy scalp:

• Cleansing adjusted to the amount of sebum and hair type.
• Respectful pH (5.0–5.5).
• No continuous chemical aggression (harsh daily sulfates, intense fragrances, drying alcohols).
• Balanced microbiota: neither overwhelming Malassezia, nor a “sterile” scalp after perpetual antifungals.
• Washing frequency according to lifestyle.

Any routine starts here.

Types of shampoos we use

In consultation, we differentiate several categories. Knowing which is which is half the battle.

Gentle cosmetic shampoos (daily use)

These are the “canvas” on which everything is built. Gentle surfactants (cocoamphoacetate, glucosides), no harsh sulfates, pH 5.0–5.5. They cleanse without stripping the scalp. These allow frequent washing for patients using minoxidil or with fine hair.

Anti-hair loss shampoos

Contain active ingredients such as caffeine, biotin, peptides, niacinamide, adenosine, or plant-derived growth factors. They do not “cure” androgenic alopecia, but they reinforce the routine, improve local microcirculation, and give hair a denser appearance.

Anti-dandruff / anti-seborrheic shampoos

For seborrheic dermatitis, flaking, itching, and excess oil. They work on Malassezia or on the inflammatory component:

• Ketoconazole 2% (medical use, twice a week).
• Zinc pyrithione, selenium sulfide, ciclopirox olamine.
• Salicylic acid and tar for more resistant plaques.

They are used in rotation, not indefinitely as monotherapy.

Keratolytic / exfoliating shampoos

Useful when there is accumulation of dead cells and fine scabs. Active ingredients: salicylic acid, urea, AHAs. Once a week is sufficient; these are not for daily use.

Specific shampoos for sensitive scalp

Acidic pH, fragrance-free, sulfate-free, paraben-free. For patients with atopic dermatitis, scalp rosacea, or post-laser/PRP treatments.

Neutral shampoos for treated or colored hair

Maintain color and treated fibers, with low detergent power and repairing agents like ceramides and amino acids.

Washing frequency: the most common question

“Is it bad to wash my hair every day?” Short answer: no, if the shampoo is appropriate.

General recommendations:

• Oily scalp, athletes, topical minoxidil users: daily or almost daily washing with a gentle shampoo.
• Dry hair with no scalp pathology: 2–3 washes per week.
• Active seborrheic dermatitis: medicated shampoo twice a week + gentle shampoo on other days.
• Colored / bleached hair: 2–3 washes with a neutral shampoo.

What Santé Clinics does avoid: daily medicated shampoo. It is counterproductive. If you need 2% ketoconazole every day, the diagnosis needs to be reviewed.

The routine by clinical scenario

Patient with androgenic alopecia + topical minoxidil

• Daily: gentle or anti-hair loss shampoo.
• Twice/week: shampoo with 2% ketoconazole (anti-inflammatory and mild local antiandrogen effect).
• Weekly: scalp exfoliant if prone to scabs.

Patient with seborrheic dermatitis

• Twice/week: shampoo with zinc pyrithione or ciclopirox.
• Twice/week: shampoo with ketoconazole.
• Remaining days: gentle neutral shampoo.
• Re-evaluation after 4–6 weeks.

Patient post-PRP, mesotherapy, or exosomes

• First 24 hours: no washing.
• After 24 hours: gentle shampoo, lukewarm water, no vigorous rubbing, pressure drying (not friction).

Patient post-hair transplant

Specific protocol from the clinic that performed the procedure, with post-operative shampoo and pressure rinsing during the first 2 weeks.

Fine hair, no pathology, in maintenance

• Gentle cosmetic shampoos with densifying active ingredients (caffeine, peptides).
• Weekly mask for lengths to avoid the “fine and empty” effect.

Common mistakes we see in consultation

• Applying shampoo to the ends. Shampoo is for the scalp. The ends are cleaned with the lather that runs down when rinsing.
• Rubbing with fingernails. Mechanical damage and possible micro-injuries. Use fingertips, gentle circular massage.
• Very hot water. Increases seborrhea and dries out hair fibers.
• Chaining medicated shampoos without diagnosis. Scalp dysbiosis, paradoxical itching, extreme dryness.
• “Miracle” shampoos with unclear labels. If it doesn't specify active ingredient and percentage, it's not a serious cosmetic product.
• Changing shampoo every 15 days. A routine needs 4–8 weeks to show effect.

Conditioners, masks, and leave-ins

Shampoo cleanses, but the routine doesn't end there. For long or treated hair, conditioner on the lengths (not on the scalp) and a weekly mask complete the cycle. For patients using minoxidil, an alcohol-free leave-in to prevent fiber dryness.

Frequently asked questions

Do I have to buy shampoos at the clinic? Not necessarily. We recommend specific products, and if we dispense them at Santé, we do so for convenience and origin control, not exclusivity.

What should I do if my scalp itches weeks after starting minoxidil? Return to the clinic. Sometimes it's the propylene glycol in the vehicle, sometimes dermatitis. The routine can be adjusted, and the problem can disappear without discontinuing treatment.

Are caffeine shampoos effective? They have in vitro and modest in vivo evidence. As a supplement, yes; as the sole treatment for established androgenic alopecia, no.

How long should I leave the shampoo on? For medicated shampoos, 3–5 minutes before rinsing. For gentle cosmetic shampoos, just long enough to massage the scalp.

Book your hair assessment at Santé Clinics

A well-designed shampoo routine begins with a scalp diagnosis. We offer a free hair assessment with digital trichoscopy and personalized product recommendations at Avenida Diagonal 384, Barcelona.

Write to us via WhatsApp at +34 699 14 58 87 to book your appointment.