Oily Hair: Causes, Mistakes to Avoid, and Effective Natural Solutions

What causes oily hair?

Oily hair is a sign of an imbalance—one that is often misunderstood and sometimes exacerbated by inappropriate hair care products. To restore lightness to the roots, a purified scalp, and balanced hair strands, you must first understand the causes and then relearn how to care for your hair—not by stripping it, but by respecting it.

I remember experiencing this persistent frustration myself: hair that was perfect in the morning but weighed down by the evening. For a long time, I thought I needed to wash it more, scrub harder, try those famous "purifying" shampoos that lather too much and dry everything out. Until I realized that oily hair isn't dirty hair, but a scalp crying out for help.

Overproduction of sebum linked to the sebaceous gland

Sebum is a lipid film naturally secreted by the sebaceous glands. It protects the scalp and moisturizes the hair shaft. The problem is not sebum itself, but its overproduction.

The onset of oily hair: understanding the triggers

Beyond biology, certain factors can contribute to hair becoming oily quickly: hormonal changes, humid weather, urban pollution, occlusive styling products, using a flat iron without protection, or brushing too frequently.

At this stage, the hair is not damaged: it is being mistreated without the owner's knowledge.

What should you avoid doing to prevent your hair from becoming greasy?

There are mistakes—often made out of habit—that make oily hair worse. We think we’re doing the right thing: we wash, brush, and touch our hair, but we end up with the opposite result—heavy roots, dull ends, and hair that looks tired before the day is even over.

Bad habits to correct

• Washing your hair too often: A stressed scalp reacts by producing more sebum to protect itself.
• Constantly touching your hair: each time you run your hands through your hair, you transfer impurities and mechanically activate the roots.
• Using the wrong shampoo: those containing sulfates or silicones disrupt the skin's balance.
• Fiddling with your hair throughout the day —repeatedly tying it back, unconsciously scratching it, and frequently adjusting it—keeps the discomfort going.

The impact of hot water and aggressive brushing

Water that’s too hot opens the pores on the scalp and stimulates the sebaceous glands. Use lukewarm water for washing and cool water for the final rinse. When brushing, avoid vigorous movements: opt for a soft brush with natural bristles, and use it on dry hair that’s been detangled in sections.

How can you space out shampooing when you have oily hair?

Why is it good to space out shampooing?

It's an idea that seems off-putting at first. Washing your hair less often seems counterintuitive when your hair is greasy first thing in the morning. And yet, it's the most effective strategy in the long run.

Washing your hair too often strips the scalp of its natural protective barrier. The scalp immediately compensates by producing more sebum. By spacing out your washes, you gradually help the scalp regulate its sebum production.

A step-by-step method for spacing out shampoos

• Try protective hairstyles: loose braids, low ponytails, and half-up styles. They hide slightly shiny roots and minimize handling.
• Use dryshampoo sparingly: choose a natural, talc-free formula and apply it only to the areas that need it.
• Try these natural tips: rinsing with diluted apple cider vinegar, misting with sage or mint hydrosol, and a gentle dry massage.

How can you cleanse your scalp effectively and sustainably?

The scalp is often overlooked, as if it didn’t deserve the same attention as the skin on the face. Yet it’s where everything begins. An unbalanced scalp—whether too oily, too dry, or clogged— disrupts hair growth, dulls the hair shaft, and suffocates the follicle.

Purify the scalp without damaging it

• A gentle exfoliation once a week: a scalp scrub, such as Alexis’s Le Scrub Madame, helps remove dead skin cells and styling product residue, and stimulates local microcirculation.
• Rinse with cold or lukewarm water: Water that is too hot stimulates the sebaceous glands. A moderate temperature soothes the skin and promotes a feeling of freshness.
• An occasional purifying mask: made with white clay or kaolin, applied only to the scalp to absorb excess sebum without drying out the hair shafts.

This routine should be followed regularly. That’s the secret to healthy hair: consistency in hair care.

What hair care routine should you adopt to regulate sebum production?

To break the vicious cycle of oily hair, it’s important to establish a specific, consistent hair care routine that’s gentle on the scalp.

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Anti-Hair Loss & Thickening Night Serum

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Example of Madame d'Alexis' routine for oily hair

• Once a week: Gently exfoliate with Le Scrub
  . This hair scrub, enriched with floral hydrosols, helps remove impurities and stimulate microcirculation without causing irritation.
• Two to three times a week: Wash with
  Organic Shampoo for Oily Hair. This organic shampoo for oily hair, formulated with Damask rose, orange blossom, and chamomile hydrosols, effectively cleanses while maintaining the scalp’s natural balance.
• For targeted care: Apply the Night Serum to the scalp
  . Apply a small amount of this fluid serum directly to the scalp. Its formula, enriched with probiotics,cationic hyaluronic acid, and plant extracts, helps soothe sensitive scalps.

Role of sebum-regulating shampoo in maintaining fiber balance

A sebum-regulating shampoo plays an essential role, provided it is formulated precisely. It must be gentle enough not to cause excess sebum production, yet effective enough to thoroughly cleanse the scalp.

At Madame d’Alexis, the focus isn’t on harsh cleansing but on gentle balance: sulfate-free plant-based cleansers, soothing hydrosols, and a fluid texture that rinses off easily.

How to treat oily hair naturally?

Nature offers a wide range of ingredients that can help treat oily hair without resorting to overly harsh formulas.

A natural hair care product shouldn't just clean the hair—it should interact with the scalp, respect its natural rhythm, and support its natural balance.

What foods should be avoided to improve the condition of oily hair?

Diet directly affects the health of the scalp, sebum production, and how quickly the roots become oily.

The link between diet and scalp health

Certain foods can contribute to excessive sebum production or silent inflammation of the scalp: foods that are too high in fat, sugary and refined foods, and ultra-processed foods that are low in micronutrients.

Beneficial nutrients

• B vitamins, particularly B6 and B8, to help balance sebum production;
• zinc, which helps maintain skin balance;
• essential fatty acids, to support the lipid barrier;
• Adequate hydration, which is often underestimated.

A healthy scalp starts with what you eat, continues in the shower, and is strengthened overnight.