Dr. Mehmet Erdogan, hair transplant surgeon and co-founder of Smile Hair Clinic, has identified a common but largely invisible mistake that slows down natural hair growth: the buildup of silicones, styling agents, excess oils, and poorly rinsed shampoo at the scalp. The fix is simpler than most people think, but it starts with understanding what's actually blocking the follicle.
You wash your hair regularly, you invest in serums, oils, and growth-boosting treatments, and yet your hair still seems to plateau. It doesn't grow past a certain length. It thins. It breaks. Most people blame genetics or stress, and while those factors play a role, there's another culprit that rarely gets mentioned: product residue silently suffocating the scalp.
Speaking to The Scottish Sun, Dr. Erdogan pointed to this overlooked issue as one of the primary reasons hair growth stalls, even in people who take their hair care seriously.
Product buildup is quietly blocking your hair follicles
The scalp is not a passive surface. It's a living environment where each follicle needs oxygen, nutrients, and space to function properly. But when silicones, styling agents, excess oils, and improperly rinsed shampoo accumulate at the roots over time, that environment becomes compromised.
What happens when follicles get clogged
According to Dr. Erdogan, clogged follicles don't just slow growth — they change the quality of the hair that does emerge. The strand becomes thinner, weaker, and more prone to breakage. In more advanced cases, the hair struggles to push through the scalp at all, making it appear as though growth has simply stopped. But the follicle isn't dead. It's blocked.
The mechanism is straightforward: when the hair bulb is deprived of a clean, healthy environment, it receives less oxygen and fewer nutrients. The resulting fiber is less dense and structurally weaker from the moment it forms. This explains why some people notice their hair looking progressively finer even without any dramatic change in lifestyle or diet.
Multiplying scalp treatments and growth serums without first clearing product residue doesn’t guarantee results. A saturated scalp can’t absorb active ingredients efficiently, no matter how potent the formula.
The role of silicones and styling products
Silicones are among the most common culprits. Found in a wide range of conditioners, serums, and heat protectants, they coat the hair shaft beautifully, adding shine and smoothness. But they also coat the scalp. Applied repeatedly without proper cleansing, they form a film that traps other residues underneath — dead skin cells, sebum, pollution particles — creating a dense layer that the follicle has to fight through.
Styling agents like gels, mousses, and creams add to this accumulation. And even shampoo itself, when not thoroughly rinsed from the roots, leaves behind a soapy film that compounds the problem. The irony is that the more products someone uses to care for their hair, the more likely they are to be contributing to this buildup, if the cleansing step isn't adjusted accordingly. If you're also dealing with hair that lacks volume or structure, a congested scalp may well be part of the equation.
Two targeted solutions to restore healthy hair growth
Dr. Erdogan's recommendations don't involve expensive procedures or complicated routines. The approach is about resetting the scalp before anything else.
Clarifying shampoo: a periodic reset
The first tool is a clarifying shampoo, used periodically rather than as a daily product. Unlike regular shampoos, clarifying formulas are designed to cut through layers of accumulated residue — silicones, mineral oil derivatives, styling product buildup — that standard cleansers leave behind. The goal isn't to strip the scalp aggressively, but to clear it thoroughly enough that follicles can function without obstruction.
The key word here is "ponctual." Clarifying shampoos are not meant for daily use. Overusing them can disrupt the scalp's natural sebum balance. But incorporating one into a weekly or biweekly routine gives the scalp a genuine reset, particularly for people who use multiple styling or treatment products regularly. This kind of approach is also worth considering alongside keratin treatments, which can themselves contribute to residue accumulation if not followed by proper cleansing protocols.
Scalp exfoliation: circulation and clarity
The second recommendation is gentle scalp exfoliation. This step works on two levels. Physically, it dislodges dead skin cells and impurities that have settled around the follicle opening. But it also stimulates microcirculation in the scalp, improving blood flow to the hair bulb and, by extension, the delivery of oxygen and nutrients that the follicle needs to produce strong, dense hair.
Scalp exfoliation can be done with a physical scrub formulated for the scalp, or with a chemical exfoliant containing ingredients like salicylic acid or glycolic acid at low concentrations. The emphasis, as Dr. Erdogan stresses, is on gentleness. The scalp is sensitive, and aggressive scrubbing can cause irritation that counterproductively disrupts the follicular environment.
Before adding any new growth serum or scalp treatment to your routine, address the foundation first. A clarifying shampoo and regular gentle exfoliation create the clean environment that makes every subsequent product more effective.
Rethinking the hair care routine from the ground up
What Dr. Erdogan's insight ultimately challenges is a common reflex in hair care: adding more products to solve a problem that was partly created by products in the first place. The instinct to layer on oils, masks, and growth treatments is understandable, but if the scalp is already saturated, those additions won't deliver their promised benefits. Research into promising new approaches to hair loss continues to advance, but even the most innovative treatments depend on a receptive scalp environment to work.
The solution starts at the base. A well-rinsed shampoo, a periodic clarifying wash, and a gentle exfoliation routine are not glamorous steps. They don't come with dramatic before-and-after claims. But according to a specialist who works with hair follicles every day, they are the foundation on which any effective natural hair growth strategy has to be built. Getting that foundation right doesn't require a complete overhaul of your bathroom shelf. It requires paying attention to what's already there, and what it might be leaving behind.
