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Amino acids and proteins

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  1. Alfa Herbal 1
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  1. Liver and liver function
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38 products
38 products
  1. N-Acetyl L-Cysteine Holomega
    -44%
    Equisalud

    N-Acetyl L-Cysteine Holomega

    50 capsules
    Rating:
    100%
    (1)
    $16.05 Msrp Price $28.84 As low as $15.41
  2. L-Carnitine 1500 Orange
    -20%
    Nutrisport

    L-Carnitine 1500 Orange

    20 ampoules
    Rating:
    100%
    (1)
    $38.51 Msrp Price $47.92 As low as $36.97
  3. Glycine
    -30%
    Solaray

    Glycine

    60 vegetable capsules of 1000mg
    Rating:
    100%
    (4)
    $12.68 Msrp Price $18.15 As low as $12.17
  4. L-Theanine 100mg
    -15%
    NOW Foods

    L-Theanine 100mg

    90 capsules
    Rating:
    93%
    (3)
    $14.36 Msrp Price $16.96 As low as $13.79
  5. L-Threonine
    -30%
    Espadiet

    L-Threonine

    60 capsules
    $17.96 Msrp Price $25.68 As low as $17.24
  6. Premium n-acetyl cysteine 600 mg
    -22%
    Swanson

    Premium n-acetyl cysteine 600 mg

    100 capsules of 600mg
    Rating:
    100%
    $13.15 Msrp Price $16.76 As low as $12.62
  7. L-Arginine 500 mg
    -31%
    Swanson

    L-Arginine 500 mg

    100 capsules
    Rating:
    95%
    (4)
    $5.49 Msrp Price $7.99 As low as $5.27
  8. L-Arginine, 500mg
    -34%
    Swanson

    L-Arginine, 500mg

    200 capsules
    Rating:
    100%
    (1)
    $9.65 Msrp Price $14.70 As low as $9.26
  9. Nac & glutathione liver function
    -14%
    Vbyotics

    Nac & glutathione liver function

    250 ml (Citrus)
    Rating:
    100%
    (1)
    $16.31 Msrp Price $18.91 As low as $15.66
  10. Beta alanine resistance and physical performance
    -29%
    Weider

    Beta alanine resistance and physical performance

    90 capsules
    $16.19 Msrp Price $22.95 As low as $15.54
  11. L Carnitine
    -29%
    Gold Nutrition

    L Carnitine

    60 capsules
    Rating:
    80%
    (3)
    $13.97 Msrp Price $19.59 As low as $13.41
  12. L-glutathione plus Holomega
    -31%
    Equisalud

    L-glutathione plus Holomega

    50 capsules
    Rating:
    93%
    (3)
    $24.48 Msrp Price $35.48 As low as $23.50
  13. Holomega lipoic acid
    -41%
    Equisalud

    Holomega lipoic acid

    180 capsules
    $57.22 Msrp Price $96.99 As low as $54.93
  14. Megamyelin
    -14%
    Jellybell

    Megamyelin

    90 capsules of 500mg
    Rating:
    100%
    (2)
    $29.88 Msrp Price $34.64 As low as $28.68
  15. Flax oil
    -21%
    Ortocel Nutri Therapy

    Flax oil

    100 softgels
    Rating:
    80%
    (1)
    $13.04 Msrp Price $16.55 As low as $12.52
  16. Same 200
    -18%
    Jarrow Formulas

    Same 200

    60 tablets
    $41.44 Msrp Price $50.56 As low as $39.78
  17. Ultra Arginine AKG
    -44%
    Swanson

    Ultra Arginine AKG

    90 capsules of 1000mg
    $16.34 Msrp Price $29.03 As low as $15.69
  18. Acetyl L-Carnitine
    -25%
    Bio-Ener

    Acetyl L-Carnitine

    90 capsules of 1000mg
    Rating:
    93%
    (6)
    $20.64 Msrp Price $27.55 As low as $19.81
  19. ORGANIC flax
    -17%
    Phytoceutic

    ORGANIC flax

    90 capsules
    $15.89 Msrp Price $19.12 As low as $15.25
  20. L-valine
    -23%
    Alfa Herbal

    L-valine

    60 capsules
    $34.14 Msrp Price $44.28 As low as $32.77
  21. Etixx Carnitine 1000
    -29%
    Etixx

    Etixx Carnitine 1000

    30 tablets
    $19.97 Msrp Price $28.30 As low as $19.17
  22. L carnitine (lemon flavor)
    -38%
    Gold Nutrition

    L carnitine (lemon flavor)

    20 units of 10ml (3000mg) (Lemon)
    Rating:
    100%
    (1)
    $21.03 Msrp Price $33.96 As low as $20.19
  23. N-Acetyl L-Cysteine Holomega
    -28%
    Equisalud

    N-Acetyl L-Cysteine Holomega

    180 capsules
    $60.50 Msrp Price $84.45 As low as $58.08
  24. Holomega r-lipoic acid
    -31%
    Equisalud

    Holomega r-lipoic acid

    50 capsules
    Rating:
    100%
    (1)
    $28.56 Msrp Price $41.42 As low as $27.42
24 of 38 Items
Page

In Naturitas you will find the best amino acid and protein supplements

Amino acids are used by the body to produce proteins, which are involved in many functions such as repairing body tissues, increasing and preserving muscle mass, or maintaining bones.

Whether you are looking for a specific amino acid such as tryptophan, glutamine , L-carnitine , arginine or tyrosine, or if you prefer a protein compound, you will find them all in this section.

Looking for a quality amino acid and protein supplement? At Naturitas we have great brands in the sector such as Solgar, Gold Nutrition, Mega Plus, Lamberts and many more.

Place your order now and get free shipping on purchases over € 45!

Satisfied customers

4,63/5 - Excellent

Based on 136,627 reviews

"My experience as a customer has been very positive, promptness of response, manner of email communication, points programme." Victoria V. 14-01-2024
"I like ordering online, but I needed to place my order over the phone and the service was super friendly and efficient." Nati Z. 29-12-2023
"You do what is expected :) You sell quality products, the delivery is fast and of high quality. Excellent!" Miriam C. 29-11-2023
"I rely on them for much of my monthly shopping, they are fast and offer good prices." Lucía G. 21-10-2023
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"I have been trusting them for a long time, quality service and products at a good price and superb customer service." Helena G. 18-08-2023
"Really good, 100% recommendable. I made a mistake in an order and they solved it very quickly, very good service." Gemma P. 31-07-2023
"Good website, fast delivery, very good customer service department, good prices and a great range of products." Juan T. 12-07-2023
"Great variety and quality of products, fast delivery and great care in the packaging so that everything arrives in perfect condition." Lola D. 02-07-2023
"Fast delivery, quality products and a willingness to resolve any issues that may arise." Mar O. 24-06-2023