Professional Serum 6 x 5ml reward

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Why is the Professional Serum pink?

Why is the Professional Serum pink?

The Professional Serum uses a pH indicator to monitor the state of its active growth factors and proteins. Because of its high concentration of biologically-derived active ingredient, it is important that the conditions remain optimal for these active factors to thrive. While a range of colors reflects that the acidity level is acceptable - from light/dark pink to orange - you should not use the product if it turns yellow or becomes cloudy.

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