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Black Diamond Serum

111SKIN

Current Price $650.00
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Highlights

  • Hyaluronic acid
  • Good for: Dullness
  • Good for: Dark spots

Details & care

What it is: A hydrating liquid serum that targets skin elasticity to sculpt and firm the skin for a younger-looking appearance.

What it does: Formulated by Dr. Yannis Alexandrides to improve elasticity and skin density, visibly refined pores and reduce the appearance of wrinkles. The Black Diamond Serum is powered by a potent microalgae extract that helps lift and tighten skin due to the elasticity that occurs naturally as the result of collagen breakdown. Facial contours appear more defined and age spots and wrinkles diminish thanks to added NovoRetin, a natural form of retinol suitable for sensitive skin.

Key ingredients:

- NovoRetin: a powerful botanical extract that lifts and tightens lax skin

- Fine black diamond powder: gently exfoliates to deliver active ingredients effectively and deeper into the skin

- NAC Y2: a trio of actives with superior antioxidant capabilities that harness the power of glutathione, vitamin C and escin to boost the body's natural ability to repair its cells at the deepest level

How to use: Following Vitamin-C Brightening Cleanser (sold separately), distribute 1-2 pumps between fingertips and apply to face and neck in an upward motion every morning and evening.

  • Paraben-free
  • Made in Switzerland
  • Item #10105034

Ingredients

Aqua / Eau / Water, Glycerin, Alcohol Denat., Isopropyl Myristate, Sorbitol, Niacinamide, Acetyl Cysteine, Escin, Aesculus Hippocastanum (Horse Chestnut / Marron) Seed Extract, Sodium Ascorbyl Phosphate, Sodium Hyaluronate, Diamond Powder, Nannochloropsis Oculata Extract, Pistacia Lentiscus (Mastic / Mastique) Gum, Glycyrrhiza Glabra (Liquorice / Rã‰Glisse) Root Extract, Aloe Vera Leaf Extract, Centella Asiatica (Gotu Kola) Extract, Haberlea Rhodopensis Leaf Extract, Soy Isoflavones, Tannic Acid, Beta-Sitosterol, Benzyl Alcohol, Carbomer, Pullulan, Caprylyl Glycol, Ethylhexylglycerin, Caprylic/Capric Triglyceride, Pentylene Glycol, Xanthan Gum, Sodium Hydroxide, Lecithin, Polyglyceryl-6 Laurate, Polyglyceryl-10 Oleate, Glyceryl Caprylate/Caprate, Sorbitan Palmitate, Citric Acid, Glycosphingolipids, Sodium Benzoate, Lactic Acid, Potassium Sorbate, Parfum / Fragrance
Ingredients are subject to change at the manufacturer's discretion. For the most complete and up-to-date list of ingredients, refer to the product packaging

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111SKIN

London-based 111SKIN is a luxury skin care brand whose formulas are developed in collaboration with space scientists. It was founded by renowned cosmetic surgeon Dr. Yannis Alexandrides, who ensures each product is carefully researched and formulated to address specific skin concerns that he treats every day, including premature aging, oily skin, acne, dullness, hyperpigmentation and dehydration.

Reviews

(18)
4.2 out of 5
Write a Review

Most helpful positive review

Jan 24, 2025
Nice Serum
I had a good sized sample of this serum with a SpaceNK beauty box. I have used it every morning and it has lasted me around two weeks. I felt like I had to use quite a lot of product as it soaks so easily in to the skin. I liked it enough but the full size product is way out of my budget!
JennyA
Reposted from spacenk.com

Most helpful critical review

Aug 15, 2025
Decent enough
Received a couple of 10mls of this in various gwps. It's a decent enough serum but not at all worth the money. Gives good hydration, is gentle and has a pleasant scent. I liked it paired with the black diamond essence by the same brand. Reminds me a bit of the Dr Dennis Gross DermInfusions Fill Repair Serum which is more affordable. Won't buy but I'm happy I got to try it.
LineD
Reposted from spacenk.com
5 stars
28%
4 stars
61%
3 stars
11%
2 stars
0%
1 star
0%

Pros:

Cons:

Current reviews don’t mention any.
Sort by Most Helpful
Eilsieg
Reposted from spacenk.com
Dec 12, 2025
Good
I received a small sample of this with purchases from the other range. I like this serum. I felt it improves completion and appears to reduce fine lines. I have sensitive skin and there was some purging or dryness after use but I felt it was working nicely to rejuvenate my cells. Price point is very high so unlikely to purchase myself. Sample lasted quite a while when not using everyday.
BevA
Reposted from spacenk.com
Nov 10, 2025
Nice Serum
I received a generous sizes sample of this serum which lasted about 5 weeks. I use a number of Skin 111 products so was keen to try this. I have mature sensitive skin so am always cautious with new products. This serum was lovely it reduced fine lines and left my skin feeling hydrated. The serum is well absorbed no lasting residual and I was able to apply my foundation almost immediately. I would love to use this on a regular basis but unfortunately the price point is prohibited for me.
LineD
Reposted from spacenk.com
Aug 15, 2025
Decent enough
Received a couple of 10mls of this in various gwps. It's a decent enough serum but not at all worth the money. Gives good hydration, is gentle and has a pleasant scent. I liked it paired with the black diamond essence by the same brand. Reminds me a bit of the Dr Dennis Gross DermInfusions Fill Repair Serum which is more affordable. Won't buy but I'm happy I got to try it.
Asna
Reposted from spacenk.com
Mar 20, 2025
Loved it
This serum made me feel better. I noticed a difference after using it for 4 weeks (which may be quite long) but you just have to trust the process on this one. It diminished the size of the my fine smile lines, which is exactly what I was hoping for when I purchased this product. So I would recommend this to someone as it did what it says.
JennyA
Reposted from spacenk.com
Jan 24, 2025
Nice Serum
I had a good sized sample of this serum with a SpaceNK beauty box. I have used it every morning and it has lasted me around two weeks. I felt like I had to use quite a lot of product as it soaks so easily in to the skin. I liked it enough but the full size product is way out of my budget!
VL3008
Reposted from spacenk.com
Verified purchase
Jan 15, 2025
Perfect for my oily skin
I’ve been looking for a serum that I can use during the daytime that doesn’t add to the oiliness that builds throughout the day, and with this, I’ve finally found it. It’s obviously very expensive, but I’ve seen dramatic improvement in the hydration & brightness of my skin, to the point where friends are commenting regularly on how good my skin looks
Load 6 more reviews
Black Diamond Serum
111SKIN
Current Price $650.00