The Good

• Impressive Formulations: “It has such a good formulation, and 2% ectoin is just icing on the cake. Ectoin offers blue-light protection and/or boosts sunscreen, and it’s hella hydrating and good for anti-aging.” (40 upvotes)
• Visible Results: “I used 3 bottles of Allies GF serum and then switched to Skinceuticals P-TIOX because it was cheaper. I like Allies better — it had a nicer texture, my skin looked better. There was a slight anti-wrinkle benefit…” (9 upvotes)
• Brightening Effects: “I absolutely loveeee their brightening serum — it’s one of my faves.” (11 upvotes)
• Advanced Technology: “The Allies of Skin formula has some really advanced technology, so I’d choose that for an all-over peptide.” (23 upvotes)
• Ingredient Quality: “They’re amazing tbh — quite safely the best I’ve seen in luxury skincare when it comes to ingredient lists. It’s like someone who nerds out over formulations made a brand.” (20 upvotes)

The Not So Good

• Texture and Pilling Issues: “I love the ingredient decks in AoS, but unfortunately everything I’ve tried other than the 35% vitamin C derivative serum (orange bottle) has pilled on me.” (14 upvotes)
• Application and Finish Problems: “I’ve had bad experiences with how a lot of AoS products sit on the skin. Really inelegant. The ingredient lists are incredible — I bought a ton based on them, but they just made me look bad.” (11 upvotes)
• Lack of Results: “I used the Peptides and Antioxidants Advanced Firming Daily Treatment for two months and didn’t notice any difference in my skin.” (9 upvotes)
• Product Stability: One user reported color changes in the Promise Keeper Blemish Sleeping Facial before its expiration date.

Comparison to Alternatives

• NIOD “I would go for the Allies of Skin in a heartbeat.” (40 upvotes) — Users favored AoS for a more comprehensive peptide solution.
• Medik8 “Medik8 contains a plethora of scientifically studied and proven anti-aging peptides… This one is going to the grave with me.” (11 upvotes) — Some users preferred Medik8 for its proven peptide efficacy.
  • Medik8 Retinol review:  https://uninfluencedreview.com/2025/12/30/is-medik8-crystal-retinal-worth-it/
• Skinceuticals “I used 3 bottles of Allies GF serum and then switched to Skinceuticals P-TIOX because it was cheaper. I like Allies better.” (9 upvotes) — AoS was often seen as more pleasant in texture, though pricier.
• Other Copper Peptide Options “You might consider a brand called Vitali that makes both a 2% and a 3% GHK-Cu serum that is fabulous. Also Young Goose skincare.” (10 upvotes) — Mentioned as strong alternatives for copper peptide users.

Tips and Tricks

• Wait for Sales: “If you’re not in a rush, I would wait till Black Friday.” (11 upvotes) — AoS discounts can be substantial.
• Application Order: “I use it at night and sometimes in the morning. It’s thick, so I wouldn’t use it all over my face. I apply it after other serums and before moisturizer.” (9 upvotes)
• Product Pairing: Users often combine multiple Allies serums — e.g., brightening + peptide formulas — for enhanced results.
• Match to Skin Type: Several oily/combination-skin users reported heaviness or pilling, suggesting AoS may suit normal to dry skin better.
• Shop Smart: Check Dermstore and holiday kits for bundled or discounted full-size products.

The Verdict

Reddit users generally appreciate Allies of Skin serums for their cutting-edge formulations, particularly those featuring ectoin, copper peptides, and antioxidant complexes. The brand’s scientific approach and ingredient transparency earn it strong credibility among skincare enthusiasts.

However, user experiences are divided, while some report visible results and luxurious textures, others cite pilling, cosmetic heaviness, and underwhelming outcomes. Most agree that AoS performs best for normal to dry skin, with oily-skin users finding the finish less elegant.

Ultimately, Reddit consensus frames Allies of Skin as a science-driven luxury brand that delivers,but at a premium. Most users recommend waiting for major sales to make the investment worthwhile.

---