Essential KPIs to Track for Customer Retention and Lifetime Value in a Beauty Brand’s Online Sales Platform

Optimizing customer retention and maximizing lifetime value (LTV) are vital for the success of any beauty brand's online sales platform. Tracking the right key performance indicators (KPIs) helps you understand customer behavior, improve marketing efforts, and increase long-term profitability. Below are the most impactful KPIs to analyze, why they matter for retention and LTV, and how to optimize them effectively.


1. Customer Acquisition Cost (CAC)

Why Track CAC?
CAC shows how much you spend to acquire each new customer. It is critical to compare CAC with LTV to ensure sustainable growth and profitability in your beauty ecommerce channel.

How to Measure:
CAC = Total Marketing Spend ÷ Number of New Customers Acquired
Include costs like influencer partnerships, paid ads, SEO, and promotional campaigns.

Tips to Optimize:

  • Use targeted digital marketing and organic social media to reduce costs.
  • Continuously analyze customer segments to improve conversion rates.
  • Benchmark CAC against LTV for sustainable customer acquisition.

Learn more about reducing CAC for ecommerce in this guide.


2. Average Order Value (AOV)

Why Track AOV?
AOV indicates the average spend per transaction. Increasing AOV directly improves revenue without needing more customers, boosting LTV.

How to Measure:
AOV = Total Revenue ÷ Number of Orders

Optimization Strategies:

  • Promote product bundles tailored to beauty routines.
  • Implement upselling and cross-selling at checkout (example: Upsell Plugins).
  • Offer incentives like free shipping thresholds.

3. Purchase Frequency

Why Track Purchase Frequency?
This KPI measures how often customers buy, reflecting engagement and loyalty. Higher purchase frequency increases individual customer LTV.

How to Measure:
Purchase Frequency = Total Orders ÷ Unique Customers

Optimization Strategies:

  • Offer subscription plans for replenishable products such as skincare or makeup.
  • Send timely replenishment reminders via email or SMS.
  • Use time-sensitive offers to encourage repeat purchases.

4. Customer Retention Rate

Why Track Retention Rate?
Retention rate assesses the percentage of customers who repeatedly purchase over time, directly influencing LTV.

How to Measure:
Retention Rate = [(Customers at End of Period – New Customers During Period) ÷ Customers at Start of Period] × 100

Optimization Strategies:

  • Enhance post-purchase experiences with personalized follow-ups and beauty content.
  • Develop loyalty programs rewarding repeat buyers.
  • Quickly resolve customer issues to prevent churn.

Explore detailed retention strategies at HubSpot's retention rate blog.


5. Customer Lifetime Value (LTV)

Why Track LTV?
LTV estimates total revenue from a customer throughout their relationship, key for forecasting profitability.

How to Measure:
LTV = AOV × Purchase Frequency × Average Customer Lifespan
Advanced models factor in profit margin and churn rates.

Optimization Strategies:

  • Focus on increasing AOV, purchase frequency, and retention.
  • Segment customers by LTV tiers to tailor marketing efforts.
  • Use predictive analytics tools (Google Analytics Predictive Metrics) for early identification of high-value customers.

6. Churn Rate

Why Track Churn?
Churn rate shows the percentage of customers who stop buying, critical to retention efforts.

How to Measure:
Churn Rate = (Customers Lost ÷ Customers at Start of Period) × 100

Optimization Strategies:

  • Collect exit feedback to understand why customers leave.
  • Implement automated re-engagement campaigns.
  • Use limited-time offers to win back inactive customers.

7. Repeat Purchase Rate (RPR)

Why Track RPR?
RPR reveals the share of customers making second or more purchases—a sign of satisfaction and loyalty.

How to Measure:
RPR = (Customers with >1 Purchase ÷ Total Customers) × 100

Optimization Strategies:

  • Offer targeted discounts or bonus loyalty points on second purchases.
  • Highlight complementary products in personalized emails.
  • Showcase customer testimonials and reviews to increase trust.

8. Net Promoter Score (NPS)

Why Track NPS?
NPS measures customer satisfaction and likelihood to recommend your brand, predicting retention and LTV.

How to Measure:
Survey with “How likely are you to recommend our brand?” (0-10 scale)
NPS = % Promoters (9-10) – % Detractors (0-6)

Optimization Strategies:

  • Act on feedback, especially from detractors.
  • Leverage promoters as brand advocates or social influencers.
  • Display positive scores in marketing.

Use tools like Zigpoll to conduct NPS surveys efficiently.


9. Repeat Customer Revenue

Why Track?
This metric quantifies revenue from repeat buyers, emphasizing the financial impact of loyalty.

How to Measure:
Repeat Customer Revenue % = (Revenue from Repeat Customers ÷ Total Revenue) × 100

Optimization Strategies:

  • Increase marketing investment in existing customers.
  • Create VIP programs for top repeat spenders.
  • Analyze repeat revenue by product category to optimize offerings.

10. Time Between Purchases

Why Track?
Shorter intervals between purchases signal higher engagement and loyalty.

How to Measure:
Average days between repeat purchases per customer or cohort.

Optimization Strategies:

  • Educate customers on recommended product usage schedules.
  • Use automated emails or retargeting ads timed based on purchase data.
  • Introduce limited-edition or seasonal products for renewed interest.

11. Cart Abandonment Rate

Why Track?
High cart abandonment rates highlight checkout friction, affecting retention and conversions.

How to Measure:
Cart Abandonment Rate = (Abandoned Carts ÷ Initiated Carts) × 100

Optimization Strategies:

  • Use exit-intent popups with discounts or help offers.
  • Deploy automated cart recovery emails with incentives.
  • Streamline mobile checkout and support diverse payment options.

12. Customer Engagement Rate

Why Track?
Engaged customers are more likely to purchase repeatedly and become brand advocates.

How to Measure:
Track email open/click rates, social media interactions, page visits, and time on site.

Optimization Strategies:

  • Personalize emails with beauty tips and exclusive offers.
  • Encourage user-generated content and reviews.
  • Run interactive campaigns or polls (try Zigpoll for engagement).

13. Repeat Purchase Cohort Analysis

Why Track?
Cohort analysis reveals retention trends by customer acquisition period, informing targeted marketing.

How to Measure:
Group customers by acquisition date and track repeat behavior and revenue over time.

Optimization Strategies:

  • Identify high-retention acquisition channels.
  • Customize offers per cohort performance.
  • Test different campaigns to optimize retention.

14. Gross Margin per Customer

Why Track?
Calculating LTV with gross margin ensures focus on profitable customers and products.

How to Measure:
Gross Margin per Customer = (Customer Revenue × Gross Margin %) – CAC

Optimization Strategies:

  • Prioritize retention on higher-margin SKUs.
  • Optimize pricing and sourcing to improve margins.
  • Apply discounts strategically to maintain profitability.

15. Customer Feedback and Review Volume

Why Track?
Review volume and sentiment provide qualitative insight into product satisfaction and influence retention.

How to Measure:
Monitor review counts and average ratings on-site and third-party platforms. Use sentiment analysis tools.

Optimization Strategies:

  • Prompt reviews via post-purchase emails.
  • Address negative feedback promptly.
  • Use insights for product and service improvements.

16. Loyalty Program Participation and Redemption Rate

Why Track?
Loyalty programs increase retention and LTV. Participation and redemption rates signal program effectiveness.

How to Measure:

  • Participation Rate = (Loyalty Members ÷ Total Customers) × 100
  • Redemption Rate = (Rewards Redeemed ÷ Rewards Issued) × 100

Optimization Strategies:

  • Simplify earning and redemption processes.
  • Incentivize higher tiers for increased spend and repeat purchases.
  • Run exclusive campaigns rewarding loyal customers.

Integrating KPIs for Holistic Insights

Combining KPIs provides deeper understanding and actionable strategies:

  • Compare CAC to LTV for acquisition ROI.
  • Analyze retention and churn together to pinpoint customer loss causes.
  • Use cohort analysis with purchase frequency to optimize marketing timing.
  • Blend NPS with engagement rates to tailor outreach to promoters and detractors.

Develop dashboards with tools like Google Data Studio or Tableau for real-time KPI tracking. Enhance data with customer sentiment and engagement via Zigpoll interactive surveys and polls.


Final Thoughts: Use Data-Driven KPIs to Boost Beauty Brand Retention and LTV

Tracking and optimizing these KPIs enable beauty brands to understand customer behavior, foster loyalty, and maximize lifetime revenue from their online sales platforms. Integrating quantitative metrics with qualitative feedback through engagement tools creates a comprehensive retention strategy.

Focusing on these data-backed KPIs with continuous testing allows you to tailor marketing, product offerings, and customer experiences, ultimately driving sustainable growth and strong brand advocacy.

Start monitoring these KPIs today to unlock the full retention and LTV potential of your beauty ecommerce platform.

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