Cosactive Phytosterol is a highly effective, plant-derived active ingredient for strengthening the skin barrier. The phytosterols it contains are similar in structure to the body’s own cholesterol compounds and play a key role in maintaining and restoring the skin’s integrity.
This ingredient supports the lipid structure of the stratum corneum, reduces transepidermal water loss (TEWL) and has a soothing effect on irritated skin. Cosactive Phytosterol is particularly effective in the care of sensitive, dry or stressed skin: it improves resistance, reduces redness and promotes a smooth, balanced complexion.
Cosactive Phytosterol – Effectiveness confirmed
The following effects were confirmed in an efficacy test with 3% Cosactive Phytosterol:
- Significant increase in skin moisture
- Reduction of water loss from the skin
- Improvement in skin density
These effects have been clinically and instrumentally confirmed and are detectable within 4 to 12 weeks.
Whether in emulsions, serums or night cream formulations – Cosactive Phytosterol is a versatile, natural helper for modern skin care products with functional requirements.
Cosactive Phytosterol – plant power for a strong skin barrier
- Cosactive Phytosterol is a versatile, natural helper for modern skin care products with functional requirements.
- Vegan
- Pellets
- ISO 16128 = 100% natural origin content
- Storage at 10-20°C
- Easy to dose
- Available from 1 kg
- Best before: 24 months
Framework formulations
- coming soon
🧪 Efficacy test results: Cosactive Phytosterol
Product name: Phytosterol Barrier Cream 457-24-1-7P with 3% Cosactive Phytosterol
Test period: 24.02.2025 – 19.05.2025
Performing laboratory: Chemicos Group, Poland
Number of test subjects: 30 (women & men, skin types II-III, sensitive & normal skin)
🎯 Aim of the investigation
Instrumental evaluation of the effectiveness of the cream in terms of:
- Skin moisture
- transepidermal water loss (TEWL)
- Skin density
The application was carried out over 84 days exclusively on the right side of the test person’s face.
📈 Results at a glance
1. Skin moisture (Corneometer® CM 825)
| Period | Ø Increase in humidity | |
| After 28 days | +29 % | |
| After 56 days | +55 % | |
| After 84 days | +64 % |
✅ Confirms the moisturizing effect of Cosactive Phytosterol.
2. TEWL – transepidermal water loss (Tewameter® HEX)
| Period | Ø Decrease TEWL | |
| After 28 days | -24 % | |
| After 56 days | -47 % | |
| After 84 days | -59 % |
✅ Confirms improved barrier function and moisture retention.
3. Skin density (Ultrascan® UC22)
| Period | Ø Increase in skin density | |
| After 28 days | +26 % | |
| After 56 days | +21 % | |
| After 84 days | +30 % |
✅ Confirms a restructuring effect on the skin matrix.
🧾 Conclusion
Cosactive Phytosterol Cream has been proven to have the following effects:
- Significant increase in skin hydration
- Reduction of water loss from the skin
- Improvement in skin density
These effects have been clinically and instrumentally confirmed and are detectable within 4 to 12 weeks.