The skin on your scalp renews its cells approximately every 24 days, much like the rest of your body’s skin cells. During this process, new skin cells form underneath while old cells naturally shed from the surface - a process known as desquamation (source). Scalp flakes you might see are usually these dead skin cells being shed. The scalp typically maintains a slightly acidic pH of around 5 and houses numerous oil (sebaceous) glands that help keep both scalp and hair hydrated and lubricated (source).
Causes of Dry Scalp
A dry, itchy scalp can be triggered by harsh detergents found in some shampoos, exposure to hard water, or changes in diet and lifestyle (source). In addition, a reduction in natural scalp oils (sebum) means hair lacks natural lubrication, often leading to dullness and the early signs of dryness. Thankfully, mild, nourishing shampoos and natural oil-based scalp moisturizers can be very effective in restoring hydration. Explore our selection of scalp care products formulated with gentle, natural oils to support a healthy scalp.
Home Remedies and Scalp pH
Natural remedies such as an apple cider vinegar rinse can assist in restoring the scalp’s optimal pH and in removing residue from styling products (research). This helps the scalp maintain a healthy barrier and supports healthy hair growth.
Dandruff: A Different Issue
Dandruff differs from simple dryness. It is caused by an overproduction of scalp oils and is often associated with irritation and excess shedding, manifesting as larger, yellowish-white flakes that can feel greasy (source). Unlike dry scalp, dandruff flakes are stickier and harder to dislodge. This condition is also often accompanied by itching and, sometimes, scalp odor.
Emerging research shows that dandruff is partially caused by the proliferation of Malassezia yeast on the scalp, which feeds on oils and dead skin cells (research link). The resulting byproducts can irritate the scalp and accelerate skin cell turnover, leading to characteristic flakes.
Dandruff Solutions
The key to managing dandruff lies in effective scalp hygiene. Medicated shampoos containing ingredients like selenium sulfide, zinc pyrithione, or ketoconazole disrupt yeast growth and clear away excess oil and dead skin (clinical evidence). For those looking for natural alternatives, oils such as tea tree oil, yarrow oil, and peppermint oil have shown promise in balancing pH, improving scalp blood circulation, and promoting unclogged follicles (study). Explore our botanical scalp care collection for curated natural solutions.
When to Consult a Physician
It’s important to note that persistent scalp dryness or dandruff may also signal underlying health conditions, such as hormonal imbalances, eczema, or psoriasis (information). If these symptoms persist or are accompanied by other skin changes, consider speaking with a healthcare professional.
To nurture your scalp with gentle, nature-inspired care, discover our complete Capsaicin Collection at Botanical Green Lab. Specially formulated to help soothe and revitalize the scalp, these plant-based treatments provide effective dandruff relief, promote a healthy balance, and deliver a pleasant warming sensation—all while using clean, vegan ingredients. Give your hair the botanical boost it deserves and experience the soothing difference today!