Works for
MoisturizingSodium hyaluronate, Porphyridium cruentum extract + 2 moreWorks
“REN Keep Young and Beautiful Instant Firming Beauty Shot draws on natural bioactive ingredients such as microalgae and yeast to improve the condition of the skin and provide deep, lasting hydration with a serum that makes the skin feel as good as it looks.”
This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": sodium hyaluronate.
When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).
Anti-agingNo ingredient credited for this claimNot delivered
“This innovative formula is designed to lift, firm and plump the skin immediately after application, restoring the vitality of youth.”
Effective ingredients missing or their concentration is too low.
Can it cause trouble?
Irritancy5 strong irritants: Sodium hydroxymethylglycinate, Rosa damascena flower oil + 3 more — patch-test recommendedHigh risk
Comedogenic1 ingredient rated 2 or more on the 0–5 pore-clogging scale1 flagged
User reviews
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Ingredients
Filter by role to see what each ingredient is doing.
Water~40–60%
Sodium hyaluronate~6.4–9.6%
- Irritation risk
- Low
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
More about Sodium hyaluronateHydroxypropyl methylcellulose~3.6–5.5%
- Irritation risk
- Medium
Used to create a thicker product consistency and stabilize the formulation
More about Hydroxypropyl methylcellulosePhenoxyethanol~0.5–1%
- Irritation risk
- Low
A preservative. It helps prevent bacterial growth in cosmetic products
More about PhenoxyethanolPullulan~2–2.9%
- Irritation risk
- High
Creates a thin drying film on the skin resulting in a short-term tightening effect
More about PullulanCarbomer~1.4–2.1%
- Irritation risk
- Low
Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations
More about CarbomerSodium hydroxymethylglycinate~0.25–0.5%
Rosa damascena flower oil~0.6–1.4%
- Irritation risk
- High
Used as a fragrance. Can be irritating
More about Rosa damascena flower oilSodium hydroxide~0.4–0.95%
Porphyridium cruentum extract~0.15–0.55%
- Irritation risk
- Low
- Comedogenicity
- 3/5
A red algae extract. Can help attract water to the upper layer of the skin and might have an antioxidant effect
More about Porphyridium cruentum extractRosa damascena flower water~0.1–0.4%
- Irritation risk
- High
Used to add a nice rose smell to the product. Might help attract water to the upper layer of the skin and have some anti-oxidant effect. Can be irritating
More about Rosa damascena flower waterCitronellol~0.05–0.2%
Geraniol~0.01–0.1%
Ingredient list view
Water, Sodium hyaluronate, Hydroxypropyl methylcellulose, Phenoxyethanol, Pullulan, Carbomer, Sodium hydroxymethylglycinate, Rosa damascena flower oil, Sodium hydroxide, Porphyridium cruentum extract, Rosa damascena flower water, Citronellol, Geraniol
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Worth comparing, line by line.
Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.
| Ren SkincareInstant Firming Beauty ShotYOUR PRODUCT | Dr. Barbara SturmLifting Serum | BABORDoctor Babor Lifting Cellular: BTX-Lift Serum | Balance Active Formula2% HYALURONIC ACID + 3% CERAMIDE COMPLEX BOOSTER | |
|---|---|---|---|---|
| Match | — | 45% | 42% | 42% |
| Price | — | $299.79 | — | — |
| Shared key ingredients | — | 2 of 2 | 1 of 2 | 1 of 2 |
| Key difference | — | Lactobacillus/Portulaca Oleracea Ferment Extract | Acetyl Octapeptide-3 | Ceramide Ap |
| Irritancy | High | Low | Low | Low |
| Drying alcohol | — | — | — | — |
| View product | Shop | Shop | Shop |
More alternatives: Indeed Labs Hydraluron Moisture Boosting Facial SerumSkinCeuticals Collagen III Amplifier Multi Peptide Collagen Serum
Sources cited in this review
Every concentration estimate and effectiveness label is anchored to one of these 3 studies and safety reviews.
- 1Hyaluronic acid: A key molecule in skin agingncbi.nlm.nih.gov
- 2
- 3
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