Casein Protein product image with 45/100 Zerotox safety score

Is Casein Protein Safe? Ingredient Analysis

Six Star

Six Star's Casein Protein is reviewed here as a supplement. Zerotox gives it 45/100 based on the current ingredient profile, so it shows multiple flagged ingredients that may matter for sensitive users.

The ingredient review below focuses especially on Natural And Artificial Flavors, Acesulfame Potassium, Sucralose.

45 / 100

Low quality

Why score is 45

The composition includes several synthetic additives such as Acesulfame-Potassium and Sucralose, which raise quality concerns. The presence of Carrageenan also indicates potential processing issues.

Main concern

Acesulfame-Potassium and Sucralose are artificial sweeteners, raising concerns about synthetic additives.

Why it matters: This ingredient is flagged in our analysis based on regulatory and scientific sources. Check the Ingredients section for details and see Data sources for methodology.

Regulation status: Ingredient safety is assessed from EU/EPA/CIR and similar databases; formulations may vary. Always read the product label.

Pros

  • Contains casein protein blend, providing a source of slow-digesting protein.
  • Includes cocoa for flavor, enhancing the overall taste profile.

Concerns

  • Acesulfame-Potassium and Sucralose are artificial sweeteners, raising concerns about synthetic additives.
  • Carrageenan is a thickener linked to digestive issues in some individuals, indicating potential quality concerns.

Who should avoid this product?

This formula may not suit:

  • people with sensitive skin or fragrance sensitivity
  • people avoiding animal-derived ingredients

Ingredients breakdown

Below, each ingredient is described in the context of this supplement, not just listed as a raw label.

  • Is Casein Protein Blend safe in this supplement?

    Good

    Casein Protein Blend is used here as base. Casein protein blend provides a slow-digesting protein source, beneficial for muscle recovery. Its quality is generally high, sourced from milk.

    Role in formula: base

    Original: Casein Protein Blend (Milk Protein Isolate [Supplying Micellar Casein and Whey], Micellar Casein)

  • Is Maltodextrin safe in this supplement?

    Medium

    Maltodextrin is used here as base. Maltodextrin is a carbohydrate used for texture and sweetness. While it is derived from starch, it raises concerns due to its processing level.

    Role in formula: base

    Original: Maltodextrin

    Read the full ingredient profile for Maltodextrin

  • Is Cocoa safe in this supplement?

    Good

    Cocoa is used here as flavor. Cocoa adds flavor and is a natural ingredient. However, its processing with alkali may reduce some health benefits.

    Role in formula: flavor

    Original: Cocoa (Processed with Alkali)

    Read the full ingredient profile for Cocoa

  • Is Salt safe in this supplement?

    Good

    Salt is used here as flavor. Salt enhances flavor and is a common ingredient. Its presence is generally acceptable in moderation.

    Role in formula: flavor

    Original: Salt

    Read the full ingredient profile for Salt

  • Is Natural And Artificial Flavors safe in this supplement?

    Bad

    Natural And Artificial Flavors is used here as flavor. These flavors can be synthetic and may not provide any nutritional benefits, raising concerns about quality.

    Role in formula: flavor

    Original: Natural and Artificial Flavors

    Read the full ingredient profile for Natural And Artificial Flavors

  • Is Gum Blend safe in this supplement?

    Medium

    Gum Blend is used here as thickener. The gum blend, including cellulose gum and xanthan gum, is used for texture but may raise concerns about processed ingredients.

    Role in formula: thickener

    Original: Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan)

    Read the full ingredient profile for Gum Blend

  • Is Acesulfame Potassium safe in this supplement?

    Bad

    Acesulfame Potassium is used here as sweetener. Acesulfame-Potassium is an artificial sweetener that raises concerns about synthetic additives and potential health effects.

    Role in formula: sweetener

    Original: Acesulfame-Potassium

    Read the full ingredient profile for Acesulfame Potassium

  • Is Sucralose safe in this supplement?

    Bad

    Sucralose is used here as sweetener. Sucralose is another artificial sweetener linked to health concerns, indicating a reliance on synthetic ingredients.

    Role in formula: sweetener

    Original: Sucralose

    Read the full ingredient profile for Sucralose

  • Is Soy Or Sunflower Lecithin safe in this supplement?

    Medium

    Soy Or Sunflower Lecithin is used here as emulsifier. Lecithin is used as an emulsifier, derived from either soy or sunflower. Its processing level may raise some concerns.

    Role in formula: emulsifier

    Original: Soy or Sunflower Lecithin

How we score

Our safety scores and ingredient breakdowns are based on regulatory and scientific sources. See Data sources & methodology and How Zerotox works for full details.

Product info

Product ID: 3379442

More from this brand: Six Star products in Zerotox

Similar products: supplement in Zerotox database

Allergens detected: milk , soy

Report / complain: You may report errors or complain about this product or its formulation to hello [at] zeroto.app . Published for transparency.

Frequently asked questions

Six Star — Casein Protein has a Zerotox score of 45 / 100 among supplements products. See the full breakdown above.
This product scores 45 / 100 mainly because of: Acesulfame-Potassium and Sucralose are artificial sweeteners, raising concerns about synthetic additives.; Carrageenan is a thickener linked to digestive issues in some individuals, indicating potential quality concerns.. See the Concerns and Ingredients sections above. Scores are informational only and do not constitute professional advice; always read the label and consult a qualified professional.
Six Star — Casein Protein has a Zerotox safety score of 45 / 100. Check the ingredient breakdown above. More Six Star products. Scores are informational only and do not constitute professional advice; always read the label and consult a qualified professional.
This product is flagged for: Acesulfame-Potassium and Sucralose are artificial sweeteners, raising concerns about synthetic additives.; Carrageenan is a thickener linked to digestive issues in some individuals, indicating potential quality concerns.. See the Concerns and Ingredients sections above.
Our analysis indicates animal-derived ingredients may be present in this product. See the Ingredients section and the label for details.
We detected: milk, soy. If you have allergies, check the label and the Ingredients section above.
This product includes positive or neutral ingredients such as: casein protein blend, cocoa, salt. See the Ingredients section above.
We do not detect parabens in this product's listed ingredients. Always check the label as formulations change.
This depends on the ingredient profile. People with sensitive skin or scalp, users avoiding fragrance, sulfates or animal-derived ingredients, and cautious shoppers should review the breakdown above before buying. Scores are informational only and do not constitute professional advice; always read the label and consult a qualified professional.
The composition includes several synthetic additives such as Acesulfame-Potassium and Sucralose, which raise quality concerns. The presence of Carrageenan also indicates potential processing issues. Scores are informational only and do not constitute professional advice; always read the label and consult a qualified professional.
Based on our data we do not detect fragrance in this product's listed ingredients. Formulations can change; check the label.
Browse Six Star products on Zerotox with ingredient analysis and safety scores.

Safer alternatives from Six Star

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