Which Serum Should You Start With? A Skin-Concern Decision Guide

Start with the serum that matches the one concern you want your routine to prioritise. Choose GHK-Cu — Copper Tripeptide Firming Serum when your focus is skin that looks firmer. Choose PDRN — Polynucleotide Repair Serum for a repair-focused routine. Choose RETINAL — Overnight Renewal Serum when you want an evening renewal step. Choose NAD+ — Cellular Energy Serum for an AM routine centred on a more radiant-looking appearance. Keep the routine focused at first, then consider a paired kit when two concerns matter equally.

Start by choosing one clear priority

The best first serum is not necessarily the product with the longest ingredient list or the busiest routine. It is the one aligned with the skin concern that matters most to you right now. Renoviq London creates single-active serums, so each option has a clear place within a routine: firmness, repair, renewal or energy. Begin by identifying the look you want to prioritise. If your skin looks less firm, take the firmness route. If you are building a repair-focused routine, select the repair route. If you prefer an overnight renewal step, choose the PM retinal option. If your morning routine is about a fresher, more radiant-looking finish, select the AM NAD+ option. Starting with one serum also makes your routine easier to follow consistently. Once that first priority is established, you can decide whether a second serum belongs in a separate AM or PM step.

Choose GHK-Cu when firmness is your priority

Choose GHK-Cu — Copper Tripeptide Firming Serum when your central concern is the look of firmness. This 30 ml serum contains 3% Copper tripeptide-1, also known as GHK-Cu, and is designated for PM use. It is the direct starting point for someone who wants their evening routine to focus on skin that looks firmer. Keep the rest of the routine simple around it, particularly when you are introducing a new dedicated active serum. A focused evening approach gives the firmness objective a clear role rather than making it one of several competing goals. GHK-Cu is also useful as a decision point when you are choosing between kits later. The FIRMNESS + REPAIR kit combines GHK-Cu with PDRN, while FIRMNESS + ENERGY pairs it with NAD+. Start with GHK-Cu alone if firmness is the unmistakable first concern; consider a pair only when a second priority is equally clear.

Choose PDRN for a repair-focused routine

Choose PDRN — Polynucleotide Repair Serum when you want to make repair the organising principle of your routine. Renoviq London’s PDRN serum contains 3% Polynucleotides, is supplied in a 30 ml format, and is designed for AM and PM use. Its flexible timing makes it a straightforward first choice for people who prefer one serum they can place in either routine. This option suits a simple approach: identify repair as the priority, use the product at the time that fits your established AM or PM skincare order, and avoid overcomplicating the first stage of your routine. If firmness also matters, the FIRMNESS + REPAIR kit brings together GHK-Cu and PDRN. If you want an AM-focused companion instead, the REPAIR + ENERGY kit combines PDRN with NAD+. For a single-serum starting point, choose PDRN when repair is the concern you want your routine to centre on.

Choose RETINAL for an overnight renewal step

Choose RETINAL — Overnight Renewal Serum when you specifically want a renewal-focused product for the evening. It contains 0.1% retinaldehyde, comes in a 30 ml size and is designated for PM use. This is the clearest route when your preference is to reserve your dedicated serum step for nighttime rather than build around an AM active. Its role is explicit in both its name and its placement: an overnight renewal serum for a PM routine. That clarity is valuable when deciding where to begin, because it prevents the routine from becoming a collection of products without distinct roles. Make RETINAL your first choice when renewal is the main theme you want in your evening skincare. If firmness, repair or a more radiant-looking AM finish is the larger priority, choose the serum aligned to that concern instead. A good first serum decision comes from matching the product’s stated axis and use time to your own routine.

Choose NAD+ for an AM energy-focused routine

Choose NAD+ — Cellular Energy Serum if you want an AM serum with an energy-focused position and a more radiant-looking routine in mind. This 30 ml serum contains 3% nicotinamide riboside and is designated for morning use. It is the natural starting choice for anyone who prefers to make their first dedicated active-serum step part of an AM routine. Its morning placement also makes it easy to distinguish from PM-only options: GHK-Cu and RETINAL are both designated for evening use, while PDRN can be used AM or PM. If you want to address two priorities from the outset, NAD+ appears in the FIRMNESS + ENERGY kit with GHK-Cu and the REPAIR + ENERGY kit with PDRN. The COMPLETE PROTOCOL combines GHK-Cu, PDRN and NAD+. Still, one clear product is often the cleanest starting point. Choose NAD+ when energy and a fresh-looking morning routine are your principal focus.