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Straight hair 20ml



PK4 SOYA PROTEIN BOOST Nutritional Supplement

  (33) Read reviews

PK4 SOYA PROTEIN BOOST Nutritional Supplement

  (33) Read reviews
  (33)  Read reviews
  • Booster for hair condition and quality
PK4 Soya Protein Boost is a soya protein nutritional supplement fortified with amino acids; the building blocks of hair. Protein is essential to optimum hair growth and hair quality. PK4 provides hair follicles with a concentrated protein boost and is especially helpful for those with a low-protein diet.
limited stock
  • Soya based protein supplement
  • Soya Protein is a source of essential amino acids, which are the building blocks of Keratin – the protein that hair is made of
  • Hair cells have the second fastest cell turnover in the body. As such, its nutritional needs are great. However, as hair is 'non-essential' tissue, it’s the last to receive nutrients we intake and the first to be withheld from. Supplements can therefore be incredibly helpful as they provide your hair with an extra internal boost
  • We recommend taking PK4 Soya Protein Boost for a minimum 12 weeks
  • Suitable for vegans & vegetarians
  • The Trichotherapy range of nutritional supplements support hair health from the inside out. Our nutritional supplements, uniquely developed by our expert trichologists, have been formulated to provide extra daily nutritional support to your hair. They can either be taken individually or together
  • Take two capsules twice daily (four per day)
  • Take with water
  • Capsules can also be sprinkled over a yogurt or a smoothie as an alternative to swallowing
  • Soya Protein
  • Suitable for vegetarians & vegans
  • Amino Acids include: Aspartic Acid, Methionine, Threonine, Isoleucine, Serine, Leucine, Glutamic Acid, Tyrosine, Proline, Phenylalanine, Glycine, Histidine, Alanine, Lysine, Cystine, Arginine, Valine, Tryptophan
  • A nutritional supplement is a product that you ingest, containing vitamins, minerals and/or other various nutrients, that helps to enhance and support your diet. They are a 'booster' so to speak, providing your body with a bit of extra help - especially where deficiencies are an issue.
  • Hair needs a variety of different nutrients in order to grow. Hair cells are the 2nd fastest growing cells in the body (2nd only to intestinal cells), yet hair is a non-essential tissue. This means that your body will never send nutrients its way if another part of you is lacking, and is usually one of the first things to suffer when there is even a slight imbalance or deficiency in the body.
  • A well-balanced diet helps ensure you get all of the vitamins and minerals you need for healthy hair cell proliferation. However, metabolism and nutritional needs vary among individuals. Furthermore, stressful lifestyles and hectic day-to-day responsibilities often make it challenging to eat a nutritionally balanced diet all the time, as do dietary restrictions, illness, pregnancies and vegan/vegetarian diets. As well as this, stress and eating foods that have been overly processed can actually impede the absorption of certain nutrients, and even lower the existing levels in your body. Unfortunately, and again because your hair is a non-essential tissue, hair is also usually the last thing to benefit from improvements to the diet and so supplements can be extremely helpful.
  • As hair grows only half an inch per month it can take over 2 months for supplements to have a visible beneficial effect on your hair. Because of this, people often get frustrated by taking them, and stop. But try not to - perseverance and patience do pay off, and within 12 weeks you should see a definite benefit to your hair.

Royal Mail (2-5 working days. Only available on items less than £40) £2.45

Next Day Delivery (Next working day, when ordered before 1pm) £4.95

Due to Royal Mail restrictions, aerosol products can only be shipped via Next Day Delivery

We ship throughout Europe and Rest of World, find more information click here.

Exchanges or refunds can be arranged for unopened, unused product, if accompanied with original order number / confirmation / invoice, within 28 days.
  •  Product Description
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  •  Ingredients
  •  Hair Guide
  •  Delivery & Returns


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  • Over priced

    If you read the ingredients you can source the soya protein isolate elsewhere very easily. Each tablet contains a very small amount and is simply a capsule of the powder so can't understand the price charged.

    Posted on
  • Trial

    I have fine, curly hair. I don't colour it or use hest, simple was h with a quality shampoo and conditioner and leave to dry naturally. My hair breaks regularly despite treating it with care. I tried these capsules for 5 month and they had absolutely not effect on my hair at all. I'd be curious to know why if anyone has any ideas!

    Posted on
  • Fantastic

    The only supplement anyone needs. I've been a hairstylist for 15 years & these are by far the best ones available. My hair is thicker, fuller & all round healthier. My nails are also growing super fast. Don't waste your money on any other hair supplement. Stick to these!!!

    Posted on
  • Healthier hair

    im a fully qualified hairdresser & I have always been bad for pre lightening my hair, I was doing a clients hair & noticed how much her hair has improved & grown so I thought I would give them a whirl as I have just had a baby & not only was my hair falling out it was weak. Over the past 3 months these tablets has really made a difference I have just bought some more & really want to grow my hair now. Very worth it I have noticed baby hairs coming on my windows peak. I hope it gets even longer soon it's most definitely thicker

    Posted on
  • Hair essential!!

    I've been using these tablets for 3 months now and have just reordered another bottle! I cannot live without these! After putting my hair through 10+ years of every type of hair extension and every hair colour under the sun, I really needed something to make my hair feel thicker and healthier. My hair has grown around 3-4 inches ( this is also with no colour treatments and no blow drying or straightening) highly recommend if you need a hair saviour!!

    Posted on
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