Full Control Anti-Thinning Scalp Serum

Name: Full Control Anti-Thinning Scalp Serum
Brand: Hello Klean
SKU: SCALPAT
Price: 30.0 GBP
Availability: InStock

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Full Control Anti-Thinning Scalp Serum

A lightweight scalp serum for water-triggered thinning. Formulated with peptide growth factors and Klean Complex™ to break down harsh water minerals that weaken follicles.

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£30.00

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Full Control Scalp Serum

£30.00

express shipping
100-days return
scheduled refills

express shipping
100-days return

Reduces hair loss by 37.5% after 84 days.
Klean Complex™ counteracts mineral buildup and supports balanced scalp pH.
Improves hydration and rebalances scalp microbiome to soothe inflammation.
Fast-absorbing, lightweight formula penetrates during the post-wash window, protecting for up to 72 hours.
Dual chamber technology keeps actives separate until first press, preserving potency and pH stability.

Expert Advice

“Peptide growth factors act like messengers, stimulating cell repair and signalling pathways that support stronger hair growth while Green tea is rich in antioxidants and can reduce inflammation.” Dr. Sonia Khorana

In 72 hours: 12% increase in scalp hydration, 18% reduction in itch*
Within 56 days: 25% reduction in hair shedding*
Within 84 days: 37.5% reduction in hair shedding*

*Hello Klean Clinical Trial 2025

Peptide Growth Factors signal cellular renewal pathways to support healthy hair growth and improve the appearance of hair density at the root.
0.4 Zinc Chloride enhances peptide delivery and helps maintain a clear, balanced follicle environment.
5% Green Tea Extract is a potent antioxidant that helps calm scalp sensitivity and visible redness associated with hard water exposure, supporting a balanced scalp microbiome.
Klean Complex™ is enriched with amino acids and AHAs that help counteract hard water minerals, support scalp pH balance, and reduce buildup that can weaken follicles.
Osmolytes (Erythritol, Trehalose, Betaine) help reinforce scalp hydration and comfort during the post-wash recovery phase.

Formulated without over 1,600 ingredients that cause potential worry, such as SLS, SLES, parabens, phthalates, and silicones.

Full Ingredients List: Aqua, Butylene Glycol, Glycerin, Propylene Glycol, Camellia Sinensis Leaf Extract, Erythritol, Trehalose, Betaine, 1,2-Hexanediol, Hydroxyacetophenone, Zinc Chloride, PEG-40 Hydrogenated Castor Oil, Panthenol, Sodium Metabisulfite, Xanthan Gum, Zingiber Officinale (Ginger) Root Extract, Menthol, Panax Ginseng Root Extract, Anemarrhena Asphodeloides Root Extract, Tetrasodium Glutamate Diacetate, Sophora Flavescens Root Extract, Angelica Polymorpha Sinensis Root Extract, Ophiopogon Japonicus Root Extract, Opuntia Ficus-Indica Stem Extract, Enantia Chlorantha Bark Extract, Glycine, Caprylyl Glycol, Pentylene Glycol, Biota Orientalis Leaf Extract, Polygonum Multiflorum Root Extract, Citric Acid, Pandanus Amaryllifolius Leaf Extract, Oleanolic Acid, Arginine, Sodium Citrate, Caffeine, Cyclodextrin, Lecithin, Adenosine, Lactobacillus/Soymilk Ferment Filtrate, Copper Tripeptide-1, Serine, Glutamic Acid, Acetyl Tetrapeptide-3, Aspartic Acid, Leucine, Oligopeptide-1, Mannitol, Alanine, Lysine, Tyrosine, Phenylalanine, Proline, Valine, Threonine, Isoleucine, Histidine, CI 16035, CI 19140.

Press to combine chambers
Shake to activate
Apply to a clean, damp scalp
3 pipettes per treatment
Use 2x per week

The carton and 100% PCR plastic bottle are both recyclable.
Check with your local council for specific recycling guidelines.

Clinically proven to reduce hair shedding by 38% in 84 days

Based on an 84-day clinical study on 12 subjects. Measured against baseline hair loss count.

Protect your hair from water-triggered stress

+12% scalp hydration in 72 hours*

-18% itchiness in 72 hours*

-25% hair shedding in 56 days*

*Hello Klean Clinical Trial 2025

Peptide Growth Factors support healthy hair growth and improve the appearance of hair density.

0.4% Zinc Chloride helps maintain a clear, balanced follicle environment.

5% Green Tea Extract helps calm scalp sensitivity and visible redness.

Klean Complex™ neutralises minerals and heavy metals in your water.

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FAQ

Minerals, heavy metals, and chlorine in hard water disrupt the scalp barrier and leave behind stubborn buildup. This can cause irritation and trigger flaking and thinning. Our serums neutralise these barrier-damaging compounds while delivering powerful actives onto the scalp, when it’s most absorbent, to repair and protect.

Full Control has been formulated to help protect hair that feels thinner than usual from harsh water irritation. Fresh Start was especially designed to protect scalps prone to flakes and itching.

Both serums are water-based and pH-balanced with no drying alcohols or occlusive ingredients, and can be used alongside topical treatments like Minoxidil.

We recommend using the product that best suits your needs. As both protect against harsh water, they will both have a positive effect on scalp hydration and follicle health.

Should you wish to try both, we would suggest using them to target different areas. For example, Fresh Start could be used around the hairline to target flakes, and Full Control could be applied to the crown or other areas of concern.

Yes. It's pH-balanced, free from drying alcohols and heavy occlusives, and formulated with barrier-supporting amino acids and osmolytes.

One bottle lasts approximately 2 months, based on twice-weekly use as recommended.

This frequency supports scalp recovery without over-washing or over-treating, both of which can slow barrier repair.

Yes, our serums are gentle, vegan, dermatologist-approved, and free from retinoids, high-dose acids or actives, making them suitable for everyone, including those who are pregnant or breastfeeding.

Yes. Our scalp serums are silicone-free, non-stripping, and pH-balanced, so they won’t affect colour or chemical treatments, including keratin treatments and Brazilian blowouts.

Our Peptide Growth Factors are biomimetic, meaning they replicate the structure and signalling behaviour of natural growth factors found in the scalp.

They’re synthetically produced but bioidentical in function, and they’re designed to trigger the same cellular renewal and repair responses that support healthy hair density at the root.

Most scalp serums mix all actives into one formula. Over time, this can reduce potency as peptides, acids, and antioxidants slowly degrade or drift out of their ideal pH range.

Our dual-chamber system keeps actives and the hydrating base formula separate until first use. This prevents oxidation and instability, so ingredients stay effective for longer. Once activated, you’re applying a freshly mixed formula.

The Post-Wash Window is the short period after you wash your hair when your scalp barrier is most exposed, but also most receptive to repair.

When you cleanse, the scalp’s natural lipid layer is temporarily disrupted. Permeability increases, meaning moisture escapes more easily and irritants, minerals, and microbes can interfere with recovery. Our Scalp Serum keeps this area protected for 72 hours to support it during this recovery phase.