Barrier Serum
If you are not totally in love with the product we will refund you 100%.
Full ingredients (INCI): Aqua, Rosmarinus Officinalis Leaf Water, Propanediol, Urea, Glycerin, Panthenol, Niacinamide, Xylitylglucoside, Anhydroxylitol, Laminaria Digitata Extract, Chlorella Vulgaris Extract, Saccharide Isomerate, Epilobium Angustifolium Flower/Leaf/Stem Extract, Maris Aqua, Xylitol, Inulin, Fructose, Lactic Acid, Sodium Levulinate, Sodium Phytate, Citric Acid, Phenethyl Alcohol, Sodium Benzoate, Potassium Sorbate, Pinene, Camphor, Terpineol, Beta-Caryophyllene, Limonene, Carvone, Linalool, Alpha-Terpinene
Use on the scalp, the face, or both, wherever skin feels flaky, itchy, or irritated.
Scalp: Part the hair and apply directly to the affected areas. Massage in gently and leave on, ideally overnight, or for at least 30 minutes before washing.
Face: Apply a thin layer to clean skin on the affected areas and leave on. Use morning, night, or both.
How often: Daily while you're in a flare-up. Two to three times a week to keep skin calm once it settles.
First time: Patch test on a small area and wait 24 hours before regular use.
Be consistent.
This works by changing the conditions on your skin over time, not overnight, so give it a few steady weeks.
In a survey of 15 people aged 25–65, visible scalp improvement was measured after just 2 weeks.
Before
After Qalm
Before
After Qalm
Your scalp is an ecosystem. Here's why flakes appear, and how to restore balance in 3 steps.
Step 1 - Balance
Malassezia is a yeast that lives on everyone's scalp. It survives by feeding on sebum, your skin's natural oil, plus the fatty acids found in most shampoos, conditioners, and hair products. When that food is there, Malassezia multiplies and triggers the inflammation behind the itching, redness, and flaking.
Every ingredient in Qalm is verified 100% Malassezia-safe, with no fatty acids it can feed on. Defenscalp™ goes further, regulating sebum to limit what Malassezia needs to survive, while soothing irritation and strengthening the scalp's barrier for long-lasting comfort.
Step 2 - nourish
Like your gut, your scalp hosts a community of microscopic life, bacteria and fungi living in balance. In a healthy scalp, beneficial bacteria compete with Malassezia for space and resources, keeping it in check. When that balance is disrupted, Malassezia overgrows, and the inflammation that follows is what you see and feel.
preBIULIN® FOS is a prebiotic that selectively feeds your beneficial bacteria. Think of it as fertilizer for the good guys, helping them crowd out Malassezia and restore the balance your scalp lost.
Step 3 - Support
Your skin has a protective barrier, lipids and proteins that lock in moisture and keep irritants out. Over time, harsh ingredients like sulfates and alcohols wear it down. Moisture escapes, sensitivity rises, and the skin loses its ability to regulate itself. This is the layer most treatments never reach. They manage symptoms at the surface, but the reason those symptoms keep coming back lives here.
Aquaxyl™ delivers deep hydration and locks it in, rebuilding the moisture your barrier has lost. Actibiome® calms inflammation and supports skin renewal. With niacinamide, panthenol, and urea, they don't just soothe your scalp, they rebuild a barrier that holds.
What our customers noticed after just a few treatments.
"My scalp had been flaking since I can remember and I've tried both Nizoral and Head&Shoulders None of them really helped. This serum is the first thing that actually gave me relief. The flakes cleared and my scalp finally calmed down."
"I'd tried every home remedy and some pricey treatments for my scalp, and none of it worked. When it flared I couldn't stop picking at it, to the point where chunks of hair would come out. This is the first thing that actually calmed it down. And I bleach my hair, so I'm relieved it's safe for color."
Seven actives that reduce the oil the yeast feeds on, rebalance your microbiome, and rebuild your skin barrier.
Some treatments clear flare-ups. Qalm helps prevent them.
Clears flaking and itching
Fewer flare-ups over time
Helps rebuild the skin barrier
Supports your scalp's microbiome
Gentle enough to use every day
Niacinamide and panthenol calm the redness and irritation that's already there, so the surface settles quickly. The deeper work on the microbiome and barrier takes longer.
By now Defenscalp has lowered the sebum Malassezia feeds on, so the yeast has less to live on and the flaking fades.
preBIULIN feeds the beneficial bacteria on your scalp so they grow back and crowd Malassezia out, and flare-ups happen less often.
With your barrier rebuilt and your microbiome back in balance, your scalp can hold its own. Flare-ups get milder and shorter, and steady maintenance keeps them that way.
Most people notice reduced flakes and less redness within 2–3 weeks of regular use.
It's made for sensitive, reactive, easily-triggered skin: non-steroidal and formulated without many of the harsh actives that tend to sting or strip. Everyone's skin is different, though, so do a quick patch test first. Apply a small amount, wait 24 hours, and check before regular use.
Yes, but what those products contain matters. Malassezia feeds on the fatty acids and oils in many shampoos, conditioners, and stylers, so pairing Barrier Serum with products that feed the yeast can undercut it. For best results, keep the rest of your routine Malassezia-safe too: a Malassezia-safe shampoo on your scalp and a gentle, Malassezia-safe cleanser on your face. Mid-flare, simpler is better, Barrier Serum plus a Malassezia-safe wash is often enough.
Both. Barrier Serum is made for the appearance of flaking and redness, whether that's flakes on your scalp or redness and scaling on your face. It works on the shared cause underneath, the excess oil and microbiome imbalance that drive both, rather than masking one symptom.
Yes. It's a water-based, leave-on serum you apply to the scalp, with no sulfates or peroxides, so it's gentle on color.
Yes. The biology behind flaking, itching, and an oily, imbalanced scalp is the same regardless of gender, and so is the formula. Men and women use it on the scalp, hairline, beard area, and face, anywhere skin flakes or feels irritated.