Hair growth serum FAQs:
Which is the best hair growth serum?
According to Philipp Haug, celebrity hairstylist and co-founder of Haug London Haus: “There’s no one-size-fits-all, but the best serums are backed by research and focus on scalp health, not just surface shine. At CENTRED, we believe true hair growth begins with a healthy scalp, which is why we created En-Root Scalp Oil as a next-generation alternative.
“It combines detoxifying and growth-supporting ingredients in a unique oil-to-milk formula that rinses clean, leaving no residue. Think of it as a scalp reset that clears blockages and stimulates healthier roots, naturally.”
Do serums actually work for hair growth?
“As a registered trichologist and hair salon owner, one of the most common questions I’m asked is, “Do hair growth serums actually work?” and the short answer is yes. But not all serums are created equal, and results depend on the root cause of the hair loss,” says Deborah Maguire.
“At our salon, Love Hair, and with my trichology clients, I always recommend formulations that support the scalp as well as the hair. When it comes to serums, I always look for ingredients backed by science and there are some standouts.A good serum supports the follicle, but the real magic happens when you also nourish your body, manage stress, and care for your scalp. It’s about consistency, patience, and treating the cause, not just the symptoms. This is why we created Seed and Soul Nutrition for Hair, a supplement designed to support hair health from the inside out.”
How do hair growth serums work?
According to Deborah Maguire: “Hair growth serums work by creating a more optimal environment for the follicle. They can help to stimulate blood circulation to nourish the root, calm inflammation that restricts growth, extend the hair’s growth phase and deliver active ingredients that help ‘wake up’ sluggish follicles.”
“Some ingredients, like Redensyl, even target stem cells in the follicle, encouraging dormant hairs to start growing again. Others, like rosemary oil or niacinamide, improve the overall health of the scalp.”
What causes hair loss?
“Stress, hormonal changes, illness, medications, nutrient deficiencies and scalp inflammation can all be culprits. Hair loss is usually multifactorial and often reflects something going on internally. That’s why we created the Inside Out Method at CENTRED, combining scalp rituals like En-Root with nutritional support with our award-winning hair growth vitamins to address the root causes and create space for new growth”, says Philipp Haug.
Similarly, Maguire adds: “Hair loss is rarely caused by one thing. It’s often a combination of internal and external triggers, such as hormonal shifts, including menopause, postpartum, PCOS, deficiencies in iron, vitamin D, B12 and other nutritional insufficiencies, such as imbalanced “gut gardens” where microbiota it’s not functioning as well as it should, this could be due to poor absorption or “same food diets.”
What does Redensyl do?
“Redensyl is a botanical-based active that targets hair follicle stem cells, supporting their ability to regenerate and grow new hair. It’s often compared to Minoxidil, but without the common side effects like scalp irritation or dependency. It’s one of the most exciting clean-science ingredients in the hair loss world right now.” – says Deborah Maguire.
Are there any side effects of using hair growth serums?
Maguire says: “With clean formulations, side effects are rare. If a serum is overloaded with alcohol, synthetic fragrance, or strong essential oils, it can cause dryness or sensitivity. But with the right product, most clients tolerate serums very well.”
She adds: “Some people experience increased shedding in the first few weeks, which can be alarming, but it’s usually just the scalp pushing out old hairs to make room for new growth. It’s temporary, and often a good sign that the serum is doing what it’s supposed to.”
