Is this shampoo suitable for my hair type?

This shampoo targets weakened, dull, or tangled hair — especially after colouring, heat styling, or frequent washing. It works well for long, porous, or bleached strands that need a strengthening cleanse without heaviness.

How should I use this shampoo for best results?

Apply to wet scalp, massage gently, rinse thoroughly, then follow with conditioner or mask on lengths and ends. Suitable for frequent use; the large format lasts through daily household routines.

What do keratin, arginine and biotin actually do in this shampoo?

Hydrolysed keratin fills cuticle gaps for smoothness and shine; arginine supports a conditioning feel; biotin (vitamin B7) is included as a vitamin associated with normal hair structure. All three act on the hair fibre, not the follicle.

I have allergies or a sensitive scalp — what should I know before using this?

Contains peanut oil (avoid if nut/peanut allergic) and CMIT/MIT preservatives (may irritate very reactive skin). Patch test first if scalp is sensitive; discontinue if irritation occurs.

The Doctor Health & Care KERATIN + ARGININE + BIOTIN MAXIMUM ENERGY Shampoo 946 ml

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The Doctor H&C Shampoo Keratin+Arginine+Biotin "Maximum Energy" (946ml): cosmetic shampoo for weakened hair with hydrolysed keratin + arginine + biotin + panthenol + vitamins A/E + arnica + witch hazel + peanut oil.

€5.51

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Kostivere 48 pcs

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SKU:: 100000010767
EAN:: 8588006041705

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The Doctor Health & Care Shampoo "Keratin + Arginine + Biotin — Maximum Energy" is a professional cosmetic hair care shampoo from The Doctor H&C range, formulated with a triple-active complex of hydrolysed keratin, arginine (amino acid) and biotin (vitamin B7) for intensive nourishing and strengthening of weakened hair. Hydrolysed keratin is a protein hydrolysate derived from keratin — the primary structural protein of human hair — obtained by enzymatic or chemical hydrolysis of the native protein into smaller keratin peptides; these peptides can penetrate into the cortex of the hair shaft and temporarily fill cracks and gaps in the damaged keratin matrix, smoothing the cuticle and improving shine and strength. Arginine is a basic amino acid that forms part of the hair's natural amino acid building blocks and contributes to the hair shaft's structural integrity. Biotin (vitamin B7) is included in the formula as a B-vitamin associated with normal hair structure. The formula also contains panthenol (provitamin B5), witch hazel water (Hamamelis virginiana), arnica flower water (Arnica montana), niacinamide (vitamin B3), thiamine (vitamin B1), vitamins E and A, and sunflower and peanut oils. The large 946 ml format provides professional-scale supply for daily use.

⚠ Contains peanut oil (Arachis Hypogaea) — not for peanut/nut allergy.

946 ml. Cosmetic shampoo for weakened hair.

NET QUANTITY: 946 ml

INGREDIENTS (INCI): Aqua, Sodium Laureth Sulfate, Sodium Chloride, Cocamide DEA, Hydrolyzed Keratin, Arginine, PEG-40 Hydrogenated Castor Oil, Hamamelis Virginiana Water, Panthenol, Arnica Montana Flower Water, Niacinamide, Thiamine HCl, Alcohol, Tocopheryl Acetate, Retinyl Palmitate, Retinyl Acetate, Biotin, Lactic Acid, Arachis Hypogaea (Peanut) Oil, Helianthus Annuus Seed Oil, Pantolactone, Cocamidopropyl Betaine, Polyquaternium-10, Citric Acid, Parfum, Sodium Benzoate, Phenoxyethanol, Potassium Sorbate, Benzyl Alcohol, Methylchloroisothiazolinone, Methylisothiazolinone, Triethylene Glycol, Propylene Glycol, Benzyl Benzoate.

USE: Apply to wet hair; massage into scalp and hair; rinse thoroughly with water.

WARNINGS: For external cosmetic use only. Contains peanut oil (Arachis Hypogaea) — not for persons with peanut or nut allergy. Avoid contact with eyes — if contact occurs, rinse immediately with water. In case of skin or scalp sensitivity or allergic reaction, discontinue use. Contains preservatives Methylchloroisothiazolinone and Methylisothiazolinone (MIT/CMIT) — known sensitisers; discontinue if scalp redness or sensitivity develops. Not a medicinal product. Keep out of reach of children.

STORAGE: Store at room temperature.

BEST BEFORE: See packaging.

COUNTRY OF ORIGIN: Russia/Ukraine.

MANUFACTURER: The Doctor Health & Care (Elfa), Russia/Ukraine.

IMPORTER: VITATEKA OÜ, Mõisa tee 5, Kostivere alevik, Harjumaa, Estonia 74204, vitateka.ee

What it is

Elfa Pharm THE DOCTOR Shampoo Keratin, Arginine and Biotin 946 ml is a shampoo for weakened, dull or easily tangled hair that needs a more strengthening wash. People usually choose this kind of formula when hair feels rough after colouring, heat styling or frequent washing, and when they want it to look smoother, more elastic and easier to manage without switching to a heavy mask at each wash.

Key actives

The key actives work on the hair fibre itself:

Hydrolysed keratin — keratin broken into smaller fragments, so it can adhere more evenly to the surface of damaged hair. This helps fill tiny irregularities along the cuticle, making strands feel smoother and look shinier.
Arginine — an amino acid naturally linked with hair structure; in shampoos it is valued for helping the formula feel conditioning rather than harsh.
Biotin — also known as vitamin B7, included in hair cosmetics as a vitamin associated with normal hair structure.

Supporting ingredients

The rest of the composition makes the shampoo more rounded:

Panthenol — helps attract and hold moisture on the hair surface, which can reduce the brittle, straw-like feel.
Niacinamide and vitamins A and E — added as functional cosmetic ingredients.
Witch hazel water and arnica flower water — give the formula a fresher, lighter feel on the scalp.
Sunflower and peanut oil — a small amount helps soften the overall finish, so the cleansing step is less stripping than a very basic shampoo.

Who it suits and how to use

The large 946 ml format suits households where shampoo is used often, or anyone who prefers a salon-size bottle in the shower. This product fits well into a hair regimen for long, porous, bleached or heat-styled hair: use it as the cleansing step, then follow with a conditioner or mask on mid-lengths and ends if hair tends to frizz or knot.

Important notes

As with many active shampoos, results are mainly cosmetic and depend on the condition of the hair shaft.

Avoid this product if you have a peanut or nut allergy, as it contains peanut oil.
It also contains CMIT/MIT preservatives, which may not suit very reactive skin.
If your scalp is sensitive, patch testing or cautious first use is a sensible idea.

Specifications

Brand	The Doctor

Delivery - terms and prices

After placing an order, delivery is processed on business days. Package design and product images may differ. Delivery time depends on the selected method - on average up to 5 days.

Estonia

Pick-up at Vitateka store (T1, Peterburi tee 2)Free
Parcel locker Itella Smartpost2.28 €
Parcel locker Omniva3.05 €
Parcel locker DPD2.34 €

Free to a parcel locker for orders from 30 €

Packeta (selected countries)

Poland - home delivery (courier)5.00 € / 21 PLN
Slovakia - pick-up point (PUDO)3.80 €
Slovakia - courier5.87 €
Czech Republic - pick-up point (PUDO)3.93 €
Czech Republic - courier6.10 €
Hungary - pick-up point (PUDO)4.13 €
Romania - pick-up point (PUDO)3.61 €

Latvia

Parcel locker Itella Smartpost3.96 €
Parcel locker Omniva4.90 €
Parcel locker DPD4.13 €

Free to a parcel locker for orders from 35 €

Lithuania

Parcel locker Itella Smartpost3.96 €
Parcel locker Omniva4.95 €
Parcel locker DPD5.11 €

Free for orders from 40 €

Finland

Posti pick-up point6.90 €

Free for orders from 75 €

Other EU countries

International Omniva post - from 7 € (price depends on parcel weight). For other options (DPD, FedEx), standard rates and transit times apply.

Free delivery - on request

In addition to the thresholds listed above, we can consider free delivery options depending on the order amount and for deliveries to other countries. Contact us and we will suggest the best option.

Contact

Email: [email protected]
Chat: message us in the chat

Delivery time

On average - up to 5 business days (depends on the selected delivery method).

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Customer Questions

Elfa Pharm THE DOCTOR Shampoo Keratin, Arginine and Biotin is formulated for hair that feels rough, looks dull, or knots easily after chemical or thermal stress. If your hair has been coloured, bleached, permed, or regularly heat-styled, the cuticle layer is likely lifted and porous, which makes strands catch on each other and lose shine. This shampoo addresses that by depositing hydrolysed keratin fragments onto damaged areas, smoothing the surface so light reflects more evenly and combing resistance drops.It also suits households where shampoo is used daily or on multiple people — the 946 ml salon-size bottle reduces replacement frequency. For very fine or low-porosity hair that gets weighed down easily, you may find a lighter cleanser more comfortable, but for medium to thick, porous, or long hair that frizzes or tangles, the formula’s balance of strengthening actives and light oils (sunflower and peanut oil in small amounts) gives a cleaner feel than heavy masks while still leaving hair manageable.Use it as the cleansing step in your routine, then follow with a conditioner or mask on mid-lengths and ends if frizz or knotting persists. The shampoo alone won’t replace a deep treatment, but it prevents the cleansing step from undoing the conditioning you apply afterward.

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Wet hair thoroughly, then dispense an amount proportional to hair length and density — roughly a 10-cent coin for short hair, a 20-cent coin for shoulder-length, and more for long or thick hair. Focus the shampoo on the scalp and root area where sebum and product residue accumulate; the foam that runs down during rinsing is enough to cleanse the lengths without stripping them.Massage with fingertips (not nails) for 30–60 seconds to activate the surfactants and let the hydrolysed keratin, arginine, and panthenol contact the hair surface. Rinse completely with lukewarm water; hot water can increase cuticle swelling and frizz. Because the formula contains conditioning agents (panthenol, small amounts of sunflower and peanut oil) and witch hazel and arnica flower waters for a lighter scalp feel, it rinses clean without the squeaky, stripped sensation of harsh clarifiers.After rinsing, apply a conditioner or mask to damp mid-lengths and ends, leave for the time indicated on that product, then rinse. This two-step approach — strengthening cleanse followed by targeted conditioning — is standard for porous or damaged hair. The 946 ml bottle supports daily or every-other-day washing for one person, or shared household use, without frequent repurchasing. Store upright, cap closed, away from direct heat or sunlight to preserve ingredient stability.

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Hydrolysed keratin is keratin broken into low-molecular-weight fragments. Because the molecules are small, they can adhere to the uneven, lifted cuticle scales of damaged hair, filling microscopic gaps and cracks. This physical deposition makes the hair surface smoother, reduces inter-fibre friction (so strands slide past each other instead of tangling), and increases light reflection — which you perceive as shine. It does not penetrate the cortex or permanently rebuild the hair shaft; the effect is cosmetic and washes out over subsequent cleanses, which is why regular use maintains the benefit.Arginine is an amino acid naturally present in hair keratin. In a rinse-off formula, its primary role is sensory and conditioning: it helps the shampoo feel less harsh and more cushioning during application, and it can support the hair’s surface hydration by attracting water molecules. It does not stimulate growth or reach the follicle from a shampoo contact time of 1–2 minutes.Biotin (vitamin B7) is included as a cosmetic ingredient associated with normal hair structure. In leave-on scalp treatments, biotin may have a more direct role; in a rinse-off shampoo, its contribution is largely symbolic and supportive — part of a broader vitamin complex (with niacinamide, vitamins A and E) that signals a “care-oriented” formula. The measurable smoothing and manageability come mainly from the hydrolysed keratin, panthenol, and the light lipid layer from sunflower and peanut oil.Together, these actives make the cleansing step itself contribute to hair condition rather than degrade it, which is the core purpose of this product category.

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Two ingredient groups in this formula warrant attention if you have known sensitivities. First, the product contains peanut oil (listed alongside sunflower oil as a softening agent). If you have a peanut or tree nut allergy, avoid this shampoo — even though it is rinsed off, residual contact on the scalp, face, neck, or hands during washing can trigger a reaction in highly sensitive individuals. Check the full INCI on the bottle if you have other specific lipid allergies.Second, the preservation system uses CMIT/MIT (methylchloroisothiazolinone / methylisothiazolinone), a widely used but potent preservative blend. In leave-on products, concentrations are strictly limited; in rinse-off products like shampoo, higher levels are permitted, but people with reactive or atopic skin, contact dermatitis history, or known isothiazolinone sensitivity may still experience itching, redness, or flaking. If your scalp is easily irritated, do a patch test: apply a pea-sized amount behind the ear or on the inner forearm, leave for a few minutes, rinse, and wait 24–48 hours. No reaction suggests tolerance, but it’s not a guarantee for full scalp exposure.The formula also includes witch hazel water and arnica flower water for a lighter, fresher scalp feel, and panthenol for surface hydration, which can mitigate dryness for many users. However, these do not override the allergen or preservative considerations. If irritation develops — persistent itch, burning, rash — discontinue use and consult a dermatologist or pharmacist. This product is not intended to treat scalp conditions; it is a cosmetic cleanser with strengthening hair-fibre actives.

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The Doctor Health & Care KERATIN + ARGININE + BIOTIN MAXIMUM ENERGY Shampoo 946 ml

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