SKU: 52187197622

(13) Niacin Serum 20%

Sale price$79.42 Regular price$88.24
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Description

(13) Niacin Serum 20%Prof. Dr. Steinkraus (13) Niacin Serum 20 % Hochdosiertes Niacinamid Serum mit Kupfergluconat und Hyaluron. Das (13) Niacin Serum 20 % von Prof. Dr. Steinkraus enthlt 20 % Niacinamid und ist mit kollagenstrkenden Kupferionen angereichert. Niacinamid (Vitamin B3) ist an sehr vielen biochemischen Reaktionen zur Gesunderhaltung der Haut beteiligt: Es strkt die Hautbarriere, wirkt pigmentaufhellend, porenverfeinernd, talgregulierend und protektiv. Der

Prof. Dr. Steinkraus (13) Niacin Serum 20 %

Hochdosiertes Niacinamid-Serum mit Kupfergluconat und Hyaluron.

Das (13) Niacin Serum 20 % von Prof. Dr. Steinkraus enthält 20 % Niacinamid und ist mit kollagenstärkenden Kupferionen angereichert. Niacinamid (Vitamin B3) ist an sehr vielen biochemischen Reaktionen zur Gesunderhaltung der Haut beteiligt: Es stärkt die Hautbarriere, wirkt pigmentaufhellend, porenverfeinernd, talgregulierend und protektiv.

Der Alleskönner ist exzellent verträglich, sorgt für einen ebenmäßigeren Teint und ein frischeres Erscheinungsbild. Als Stand-Alone-Produkt ebenso einsetzbar wie als Ergänzung zu den Hyaluron-, Vitamin-C- und Vitamin-A-Seren der TetCode4-Linie. Nach der Reinigung auftragen und 2–3 Minuten einziehen lassen, bevor die Gesichtspflege folgt.

Besonderheiten

  • 20 % Niacinamid hochdosiert
  • Mit kollagenstärkenden Kupferionen
  • Porenverfeinernd und talgregulierend
  • Stärkt die Hautbarriere
  • Unisex und vegan
  • Für alle Hauttypen

Schlüssel-Inhaltsstoffe & ihre Wirkung

Niacinamid 20 %
Stärkt die Hautbarriere, gleicht Pigment aus und reguliert Talgproduktion.

Kupfergluconat
Stärkt das Kollagen und fördert eine stabile Hautstruktur.

Natriumhyaluronat (0,3 %)
Spendet Feuchtigkeit und verbessert das Hautgefühl.

Heidekraut-Extrakt
Liefert bioaktive Polyphenole und stärkt die Schutzfunktion.

Roggensamen-Extrakt
Wirkt adstringierend und unterstützt die natürliche Abschilferung.

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SKU: 52187197622

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4.8 ★★★★★
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Rose kennly pierre
Battle Creek, US
★★★★★ 4
Comfortable and Stylish Shoes
Size: 8.5, Color: British Tan/Ivory
These shoes are very comfortable and stylish. The quality feels great, and they fit perfectly. I can wear them for a long time without discomfort. They look elegant with both casual and dress clothes. Definitely worth the price and I would recommend them to others. ⭐⭐⭐⭐⭐
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Reviewed in the United States on May 8, 2026
J
Verified Purchase
Josh R.
Grantham, US
★★★★★ 5
Great Shoe
Size: 10.5 Wide, Color: Black Leather/Black
Great shoe! Especially for those that are on the move in a professional setting for a lot of the day. The only issue I’ve had with these so far are my shoe laces are warping. The shoe itself is holding up great.
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Reviewed in the United States on June 11, 2026
G
Verified Purchase
G. Mays
Whiting, US
★★★★★ 5
A great purchase
Size: 10.5, Color: British Tan/Ivory
These shoes are very comfortable and attractive. Lots of people noticed them when I first wore them. I would not consider them the most dressy shoes you can buy, but they work for "business casual" and most other outfits (but not shorts).
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Reviewed in the United States on April 24, 2026
S
Verified Purchase
Shahbaz
Lake Worth, US
★★★★★ 4
All-Day Comfort for 10+ Hour Workdays. Finally Found a Pair That Holds Up
Size: 12, Color: Black Leather/Black, Size: 12, Color: Black Leather/Black
After years of trying different “comfortable” dress shoes, this is the first pair I’ve owned that I can wear for a full 10+ hour workday without counting down the minutes to take them off. For context, I’m a retail district manager. I’m on my feet most of the day walking stores, standing in conversations, moving constantly. I’ve owned Clarks, Rockport, and even higher-end dress shoes, and while some started out comfortable, none of them held up for an entire day without foot fatigue setting in. These Cole Haan shoes are different. What stands out: All-day comfort: No mid-day foot pain, even after long shifts. Solid construction: Genuine leather that takes and holds a polish well. Supportive sole: Noticeably helps with impact from constant walking. Great value: Performs better than shoes I’ve paid significantly more for. I also appreciate that they hit a nice middle ground stylistically; more business casual than formal, but still sharp enough for most professional environments. For additional context, I am a heavier individual and tend to wear down the outer (lateral) edge of my shoes first. That pattern holds true here as well. The only drawback: After about two months of wearing them 5 days a week (purchased January 7th), the sole shows more wear than I would expect at this point. It’s not a dealbreaker, but it’s the reason I’m giving 4 stars instead of 5. I’ll be including a comparison photo between the worn pair and a new pair for reference. That said, I still expect to get around 8–10 months of use out of them, which at this price point is more than fair. Bottom line: If you need a comfortable, reliable, and reasonably priced work shoe for long days on your feet, these outperform just about everything else I’ve tried, and that’s why I bought a second pair.
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Reviewed in the United States on March 24, 2026
A
Verified Purchase
Amazon Customer
Birmingham, US
★★★★★ 5
Great Shoes
Size: 10, Color: Cognac
Love these shoes super comfortable and look great. Everyone asks me where I got them.
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Reviewed in the United States on May 20, 2026

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