How Product Lifecycles Shape Growth More Than Your Ad Budget

Most brands love to talk about their growth levers.

Paid. Influencers. Retail. Press. Founders in front of the camera. Everyone has a theory about what “really” drives scale.

But far fewer teams talk about the thing that quietly determines whether you grow, stall, or decline:

The lifecycle of your products.

Every brand has the hero SKU that started it all.
Every brand has products that caught fire unexpectedly.
And every brand, whether they realize it or not, has products that are aging out. 

Products, just like companies, have their own lifecycles. Your growth strategy has to evolve with them.

Here’s how I think about it.

Every SKU across your assortment sits in one of four stages:

The mistake most brands make is treating every product—especially their hero—like it’s permanently in stage two.

If you don’t understand which stage your hero is in, you won’t resource it correctly. You’ll spend too little when it needs momentum. You’ll overspend when it needs retention. You’ll try to “fix the ads” when the real problem is category competition. And you’ll keep unprofitable products alive long after they should retire.

But virality cools. Categories crowd. New entrants emerge. Technology shifts. Consumer preferences evolve. A product that once printed money can suddenly feel… flat.

A lifecycle lens helps you diagnose why.

The introduction stage is all about awareness, and you only get one shot at it.

Especially in categories like beauty, where competition is fierce and consumer attention is expensive, the biggest mistake you can make is launching quietly. There is no “slow build” for most products. You need a moment.

That means:

I’ve seen brands underinvest in launch because they’re trying to maximize efficiency.
But efficiency is not the goal in the introduction stage—penetration is.

A product that doesn’t get its launch moment rarely gets a second chance.

Growth is where everything clicks. You can feel momentum.

A great example is ILIA’s Limitless Lash Mascara.

It became the #1 clean mascara at Sephora. It went viral multiple times, even attracting celebrities organically. It built a loyal base of repeat buyers for Ilia, and sat at the center of our growth engine for years.

But in this growth stage, the strategy shifts. Now, you need to focus on

Also, an important part of growth-stage marketing is teaching customers the “rhythm” of the product. 

It’s not just, “Buy again.” It’s, “Here’s why you should be replacing this regularly.”

This is usually the most profitable phase. Yet, it’s also the easiest to misinterpret.

When things are working, folks assume they always will. But no product lives in the growth stage forever, which leads us to…

Eventually, every great product matures. Maturity always comes, even for category leaders.

You’ll know you’ve hit this stage because your competition increases, the category evolves, and your “breakout product” becomes part of the broader landscape.

This is where brands often panic:

That’s because you’re not in the growth stage anymore. You’re defending a position.

The maturity stage is about:

This is exactly where our mascara once was. A moment came when we nearly lost the #1 spot at Sephora. Not because the formula changed or because demand disappeared, but because category competition intensified and we were no longer the shiny new thing.

During this stage, you may feel the need to run a discount or switch up your ad strategy. Instead, the solution could be a product extension.

A product extension is when you take an existing, successful product and create a new version, variation, or upgrade that builds on its original momentum—without starting from scratch.

Think of it as extending the product’s lifespan, relevance, and revenue curve. This basically brings you back to the start of the product lifecycle—to the introduction phase—with the extended version of the product.

There are two types of extensions: “newness” or “improvedness.” And when you’re nearing the end of the maturity phase, you have to either decide to extend the product or end the lifecycle.

Eventually, every product hits a point where you have to decide: Is this worth extending or is it time to let it go?

There’s no single right answer, so here are some tips for evaluating which option to choose:

A great example is ILIA’s C Beyond Vitamin C SPF.

People loved it, but it didn’t accelerate over time. And eventually, keeping it in the lineup didn’t make sense. So we discontinued it, used the remaining inventory intentionally for gifting, and cleared space for innovation with higher potential.

A reminder… Sunsetting isn’t failure, it’s operational hygiene and sometimes a completely necessarily and smart decision. Apparel is a great example of this.

Apparel brands don’t hope products last forever. They don’t expect momentum to hold for years. And they don’t keep dead inventory alive out of sentiment.

Their entire business is built on cycles: New season → growth → maturity → archive → gone.

It works because customers psychologically anticipate the lifecycle.

The result?

Apparel proves that lifecycle management is an impactful a growth strategy when used successfully.

Extensions are rocket fuel when used intentionally.

The most common (and effective) forms include:

When we launched the “Rich brown” extension of Limitless Lash Mascara, it reignited momentum behind a product that was already years into maturity.

This extension gave us the opportunity to

Extensions don’t just restart the lifecycle, they expand it.

Think about Clarins’ Double Serum, which has been around for decades but continues to evolve through reformulations (improvedness). Or MAC bringing back discontinued shades from the 90s that immediately feel “new” again (newness).

This bringback moment sparked virality for MAC, earning them a ton of media coverage as well as organic reviews across TikTok, YouTube, and Instagram where beauty enthusiasts showed off the shades and talked about their favorites.

This is how great products stay relevant long after their initial breakout moment.

When you understand product lifecycles, you stop trying to solve the wrong problems. Most importantly, you start seeing your catalog the way operators do:

A brand that understands its product lifecycle can scale intentionally, not accidentally.