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Description
Crystal Retinal 1™ Night SerumDe Crystal Retinal 1 serum van Medik8 bevordert de nachtelijke herstelcyclus van de huid waardoor fijne lijntjes en rimpels worden vermindert en je iedere dag weer opstaat met een goed verzorgde, jeugdig ogende huid. Daarnaast zorgt het serum voor een zachtere teint en laat deze je genieten van een vernieuwde, vollere, glanzende en zijdezachte huidtextuur. Heeft een antibacterile werking. Welk resultaat kun je verwachten? Een egale, soepele en jeugdig
De Crystal Retinal 1™ serum van Medik8 bevordert de nachtelijke herstelcyclus van de huid waardoor fijne lijntjes en rimpels worden vermindert en je iedere dag weer opstaat met een goed verzorgde, jeugdig ogende huid.
Daarnaast zorgt het serum voor een zachtere teint en laat deze je genieten van een vernieuwde, vollere, glanzende en zijdezachte huidtextuur. Heeft een antibacteriële werking.
Welk resultaat kun je verwachten?
Een egale, soepele en jeugdig ogende huid met zichtbaar verminderde fijne lijntjes en rimpels.
Werkzame stoffen
- 0.01% Encapsulated Retinaldehyde: Bewezen dat het tot 11 keer sneller werkt dan retinol, retinaldehyde is een revolutionaire nieuwe vorm van vitamine A die zich richt op fijne lijntjes en rimpels, pigmentvlekken en ongelijke huidtextuur.
- Hyaluronzuur: Met een uniek vermogen om meer dan 1000 keer zijn eigen gewicht in water aan te trekken en vast te houden, trekt hyaluronzuur vocht uit de omringende atmosfeer in de huid, waardoor de huidteint zowel gevoed als soepel blijft.
- Vitamine E: Een olie-oplosbare antioxidant die van nature in de huid aanwezig is. Vitamine E beschermt de huid tegen vrije radicalen en wordt geregenereerd door vitamine C voor een optimaal vermogen.
- Glycerine: Een natuurlijke vochtinbrenger. Glycerine neemt vocht op in de huid waardoor deze zacht en soepel blijft.
Hoe vaak gebruik je dit Serum?
Wanneer je voor het eerst gebruik maakt van retinol, wil je je huid laten wennen door het gebruik van dit serum op te bouwen. Gebruik het serum de eerste twee weken twee keer per week, vervolgens twee weken lang om de nacht en daarna kun je het serum iedere nacht aanbrengen.
Voor welke huidtypes is het geschikt?
Het serum is geschikt voor alle huidtypes, voornamelijk voor mensen met een zeer gevoelige, rijpere, onzuivere of rosacea huid of degenen die een kleine hoeveelheid vitamine A in hun verzorgingsroutine willen brengen.
Crystal Retinal 1™ is diervriendelijk, vegan en vrij van parabenen, ftalaten, palmolie, alcohol en synthetische geurstoffen.
Kenmerken
- Bevordert de nachtelijke herstelcyclus van de huid
- Vermindert rimpels en fijne lijntjes
- Zorgt voor een egale, soepele en jeugdig ogende huid
- Werkt tot 11 keer sneller dan de klassieke vorm van retinol
- Beschermt de huid tegen vrije radicalen
- Perfect voor de gevoelige huid
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
TireJECT cannot work miracles
Size: Compact Car, Mid-size Sedan, Size: Compact Car, Mid-size Sedan
TireJECT is a surprisingly thin fluid that supposedly contains fibers that must help stop up holes. Frankly I'm still confused as to how this stuff can plug a leak, but apparently it does. Tons of reviews say so.
I say apparently because the product did not completely stop a slow leak in my tire, but that's OK. I knew it likely wouldn't. I'll have to replace the tire unfortunately.
I had a garage install four nearly-new tires on my car. After installing, a heavy leak was discovered in one of them. They took the tire off again and found a small tear near the rim/bead of the sidewall. Since the tear would be flat against the rim, they suggested to let them try and repair it with tire patch adhesive and lots of bead sealer. They were confident, so I went for it. It seemed to work, but it went flat a few days later.
TireJECT seemed like the perfect solution to the slow leak since I wouldn't have to disturb the repair. I bought the kind without the syringe and regretted it immediately upon trying to use it. First, the valve stem removal tool broke as it loosened it. I had to buy a new tool down the road. When I went to inject, I squeezed as hard as I could but it just wouldn't flow past the TPM. It also kept leaking out of the flex joint of the nozzle. I had a huge syringe on hand, so I sucked up the rest from the bag, ziptied the hose on both ends and got the rest of the product into the tire. HURRAY!
The tire pressure had fallen considerably by the next morning. BOOOoo. I contacted TireJECT, and after several emails (and long waits in between). They determined their product was not suitable for my use case. They refunded what I paid without me even asking. I really appreciated that.
That said, before injecting, the tire would go flat overnight. So, TireJECT does work to a good degree. I'm half tempted to overdose the tire with another package.
Give TireJECT a try! Though, be sure your situation matches their criteria. If you have a TPM, opt for the package that comes with a syringe. You will need it. Also, throw the cast pot metal, tire stem tool out and get a decent machined one before you do the repair. Thank me later.
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Reviewed in the United States on April 1, 2025
★★★★★ 5
Works once again!
Size: Compact Car, Mid-size Sedan
Third time using TireJect on a vehicle, and it's worked perfectly each time. First was the off-road formula for leaking motorcycle tire beads.... then this formula my light SUV with a slow leak until I could get the tire replaced. This was for a stubborn tire that had a leak SOMEWHERE, and usually would lose 10-15 psi overnight after a fill-up. Two days later, still fully inflated and no signs of trouble. This is great because this formulation is also okay for tire pressure sensors. Will continue to purchase this product for similar issues going forward. High quality, durability, and easy to use.
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Reviewed in the United States on October 29, 2025
★★★★★ 5
Works like a champ!
Size: Full-size Truck, SUV
It works great! I had one fairly slow leak and 2 very slow leaks. 3 Tires. 2 were on my 94 Ford Ranger. I put a little more than 1/2 the packet in my fastest leaking tire (on the Ranger) and about 1/4 of the packet in the 2nd tire of the same vehicle. Lastly, I put the final 1/4 in a very slow leaking tire on my 2000 Ford F-150. All tires have stopped leaking!! I am delighted with the effectiveness of this product!!
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Reviewed in the United States on May 13, 2026
★★★★★ 4
Seems to have done a great job.
Size: Full-size Truck, SUV (2-pack)
One of our cars has suffered from rim leaks and was driving me nuts. Constantly being asked by my wife to top off the tires on her car. When I replaced a damaged rim I asked the tire shop to look for the source of the leaks. They said the "alloy" rims had started to corrode and did their best to get them to seal but warned me they would likely leak again. This spring when I removed her snow tires I found 3 of her 4 tires had gone completely flat in storage. The fourth was the new rim which was fine. I considered buying new rims that won't have this problem but wanted to wait until her times need to be replaced. The batteries in the TPMS sensors are getting very low so likely these will need to be replaced as well. I thought to try some sort of sealant. Most of the products I saw were not rated for automotive systems and offered warnings about risk to the TMPS sensors. This seemed to be the only product rated for my application and claimed it would not harm our car's sensors. So I gave it a shot. I ordered the SUV package that came with an injector and two 8-oz bottles. I put 4 oz in each tire per the instructions. Overall the process was easy except the valve core extractor broken on one of the tires. I had to pick up a replacement at a local auto parts store. Also, injecting the sealant creates a small amount of pressure in the tire that, if one doesn't release by drawing out the plunger, will burp a small amount of sealant onto the rims. Fairly easy to clean up with WARM water and easier to avoid after the first experience. Drove the car around at a variety of speeds for 10-15 minutes (had errands to run) and waited to see what happened. Great results. Weeks later and the tires still have the correct pressure. I am not sure how long this will last but hopefully for the remaining life of the tires at least. I took one star off for easy of use / easy to install because the valve core extractor is made of extremely cheap aluminum and I am sure others will have a poor experience with it. Be forewarned and consider buying one before you start jacking up your car and letting the air out of the tires only to find you break the tool on a sticky valve core and are unable to complete the job without a trip to the auto parts store. I'll update this review in about a year to report on the long-term outlook for this product.
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Reviewed in the United States on June 20, 2023
★★★★★ 5
It Works!
Size: Full-size Truck, SUV
When I bought my vehicle it didn't come with a spare. I knew what I was in for. I was on my way to an important meeting and as fate would have, the tire pressure indicator reported a flat. I imagined the worst but experienced the best!
The directions said to let all the air out of tire and remove the valve stem core, it seemed like I was making a bad situation worse. Then it said to attach the tube to the stem and squeeze the contents into the tire. I thought "this is never going to work" the fluid seemed too watery to seal anything, but I followed instructions, I reinstalled the valve core and reinflated the tire, and it worked!
I expected it to leak immediately, it didn't. It lasted all day and most of the next day until I could get the tire to the shop. They removed a nail and patched the hole, overall I'm very satisfied, I bought a replacement right away, just in case!
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Reviewed in the United States on May 20, 2026
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